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Finding the Fourth Proportional to 61,404, 84,737.52 and 34,908

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Solution

The fourth proportional to 61,404, 84,737.52 and 34,908 is: 48,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,404 : 84,737.52 = 34,908 : x
  2. Step 2: Convert to fraction form
    61,404/84,737.52 = 34,908/x
  3. Step 3: Cross multiply
    61,404x = 84,737.52 × 34,908
  4. Step 4: Simplify right side
    61,404x = 2,958,017,348.16
  5. Step 5: Solve for x
    x = 2,958,017,348.16/61,404
  6. Step 6: Final answer
    x = 48,173.04

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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.