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Finding the Fourth Proportional to 5,773.60, 8,660.40 and 5,409.10

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Solution

The fourth proportional to 5,773.60, 8,660.40 and 5,409.10 is: 8,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,773.60 : 8,660.40 = 5,409.10 : x
  2. Step 2: Convert to fraction form
    5,773.60/8,660.40 = 5,409.10/x
  3. Step 3: Cross multiply
    5,773.60x = 8,660.40 × 5,409.10
  4. Step 4: Simplify right side
    5,773.60x = 46,844,969.64
  5. Step 5: Solve for x
    x = 46,844,969.64/5,773.60
  6. Step 6: Final answer
    x = 8,113.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.