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Finding the Fourth Proportional to 61,389.98, 84,717.32 and 34,532.47

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Solution

The fourth proportional to 61,389.98, 84,717.32 and 34,532.47 is: 47,654.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,389.98 : 84,717.32 = 34,532.47 : x
  2. Step 2: Convert to fraction form
    61,389.98/84,717.32 = 34,532.47/x
  3. Step 3: Cross multiply
    61,389.98x = 84,717.32 × 34,532.47
  4. Step 4: Simplify right side
    61,389.98x = 2,925,497,926.92
  5. Step 5: Solve for x
    x = 2,925,497,926.92/61,389.98
  6. Step 6: Final answer
    x = 47,654.33

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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.