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Finding the Fourth Proportional to 6,324.76, 8,728.16 and 3,530.26

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Solution

The fourth proportional to 6,324.76, 8,728.16 and 3,530.26 is: 4,871.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,324.76 : 8,728.16 = 3,530.26 : x
  2. Step 2: Convert to fraction form
    6,324.76/8,728.16 = 3,530.26/x
  3. Step 3: Cross multiply
    6,324.76x = 8,728.16 × 3,530.26
  4. Step 4: Simplify right side
    6,324.76x = 30,812,674.12
  5. Step 5: Solve for x
    x = 30,812,674.12/6,324.76
  6. Step 6: Final answer
    x = 4,871.75

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Find fourth proportional to 3,162.38, 4,364.08 and 1,765.13
Half scale
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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.