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Finding the Fourth Proportional to 38,471.58, 57,713.13 and 12,167.58

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Solution

The fourth proportional to 38,471.58, 57,713.13 and 12,167.58 is: 18,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,471.58 : 57,713.13 = 12,167.58 : x
  2. Step 2: Convert to fraction form
    38,471.58/57,713.13 = 12,167.58/x
  3. Step 3: Cross multiply
    38,471.58x = 57,713.13 × 12,167.58
  4. Step 4: Simplify right side
    38,471.58x = 702,229,126.33
  5. Step 5: Solve for x
    x = 702,229,126.33/38,471.58
  6. Step 6: Final answer
    x = 18,253.19

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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.