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Finding the Fourth Proportional to 61,338.92, 84,638.22 and 34,476.44

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Solution

The fourth proportional to 61,338.92, 84,638.22 and 34,476.44 is: 47,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,338.92 : 84,638.22 = 34,476.44 : x
  2. Step 2: Convert to fraction form
    61,338.92/84,638.22 = 34,476.44/x
  3. Step 3: Cross multiply
    61,338.92x = 84,638.22 × 34,476.44
  4. Step 4: Simplify right side
    61,338.92x = 2,918,024,513.54
  5. Step 5: Solve for x
    x = 2,918,024,513.54/61,338.92
  6. Step 6: Final answer
    x = 47,572.15

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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.