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Finding the Fourth Proportional to 61,498.62, 84,872.97 and 34,639.41

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Solution

The fourth proportional to 61,498.62, 84,872.97 and 34,639.41 is: 47,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,498.62 : 84,872.97 = 34,639.41 : x
  2. Step 2: Convert to fraction form
    61,498.62/84,872.97 = 34,639.41/x
  3. Step 3: Cross multiply
    61,498.62x = 84,872.97 × 34,639.41
  4. Step 4: Simplify right side
    61,498.62x = 2,939,949,605.75
  5. Step 5: Solve for x
    x = 2,939,949,605.75/61,498.62
  6. Step 6: Final answer
    x = 47,805.13

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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.