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Finding the Fourth Proportional to 62,876.67, 94,294.96 and 20,748.90

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Solution

The fourth proportional to 62,876.67, 94,294.96 and 20,748.90 is: 31,116.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,876.67 : 94,294.96 = 20,748.90 : x
  2. Step 2: Convert to fraction form
    62,876.67/94,294.96 = 20,748.90/x
  3. Step 3: Cross multiply
    62,876.67x = 94,294.96 × 20,748.90
  4. Step 4: Simplify right side
    62,876.67x = 1,956,516,695.54
  5. Step 5: Solve for x
    x = 1,956,516,695.54/62,876.67
  6. Step 6: Final answer
    x = 31,116.74

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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.