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Finding the Fourth Proportional to 5,683.83, 7,842.79 and 3,165.13

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Solution

The fourth proportional to 5,683.83, 7,842.79 and 3,165.13 is: 4,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,683.83 : 7,842.79 = 3,165.13 : x
  2. Step 2: Convert to fraction form
    5,683.83/7,842.79 = 3,165.13/x
  3. Step 3: Cross multiply
    5,683.83x = 7,842.79 × 3,165.13
  4. Step 4: Simplify right side
    5,683.83x = 24,823,449.91
  5. Step 5: Solve for x
    x = 24,823,449.91/5,683.83
  6. Step 6: Final answer
    x = 4,367.38

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Find fourth proportional to 2,841.92, 3,921.40 and 1,582.57
Half scale
Find fourth proportional to 11,367.66, 15,685.58 and 6,330.26
Double scale
Find fourth proportional to 5,684.83, 7,844.17 and 3,166.13
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.