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Finding the Fourth Proportional to 61,580.00, 84,987.96 and 34,721.97

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Solution

The fourth proportional to 61,580.00, 84,987.96 and 34,721.97 is: 47,920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,580.00 : 84,987.96 = 34,721.97 : x
  2. Step 2: Convert to fraction form
    61,580.00/84,987.96 = 34,721.97/x
  3. Step 3: Cross multiply
    61,580.00x = 84,987.96 × 34,721.97
  4. Step 4: Simplify right side
    61,580.00x = 2,950,949,046.22
  5. Step 5: Solve for x
    x = 2,950,949,046.22/61,580.00
  6. Step 6: Final answer
    x = 47,920.58

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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.