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Finding the Fourth Proportional to 61,609.40, 85,023.12 and 34,753.04

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Solution

The fourth proportional to 61,609.40, 85,023.12 and 34,753.04 is: 47,960.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,609.40 : 85,023.12 = 34,753.04 : x
  2. Step 2: Convert to fraction form
    61,609.40/85,023.12 = 34,753.04/x
  3. Step 3: Cross multiply
    61,609.40x = 85,023.12 × 34,753.04
  4. Step 4: Simplify right side
    61,609.40x = 2,954,811,890.28
  5. Step 5: Solve for x
    x = 2,954,811,890.28/61,609.40
  6. Step 6: Final answer
    x = 47,960.41

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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.