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Finding the Fourth Proportional to 62,188.56, 85,821.12 and 38,301.66

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Solution

The fourth proportional to 62,188.56, 85,821.12 and 38,301.66 is: 52,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,188.56 : 85,821.12 = 38,301.66 : x
  2. Step 2: Convert to fraction form
    62,188.56/85,821.12 = 38,301.66/x
  3. Step 3: Cross multiply
    62,188.56x = 85,821.12 × 38,301.66
  4. Step 4: Simplify right side
    62,188.56x = 3,287,091,359.06
  5. Step 5: Solve for x
    x = 3,287,091,359.06/62,188.56
  6. Step 6: Final answer
    x = 52,856.85

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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.