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Finding the Fourth Proportional to 38,489.60, 57,734.40 and 17,713.10

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Solution

The fourth proportional to 38,489.60, 57,734.40 and 17,713.10 is: 26,569.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,489.60 : 57,734.40 = 17,713.10 : x
  2. Step 2: Convert to fraction form
    38,489.60/57,734.40 = 17,713.10/x
  3. Step 3: Cross multiply
    38,489.60x = 57,734.40 × 17,713.10
  4. Step 4: Simplify right side
    38,489.60x = 1,022,655,200.64
  5. Step 5: Solve for x
    x = 1,022,655,200.64/38,489.60
  6. Step 6: Final answer
    x = 26,569.65

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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.