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Finding the Fourth Proportional to 61,045.74, 84,213.42 and 39,529.32

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Solution

The fourth proportional to 61,045.74, 84,213.42 and 39,529.32 is: 54,531.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,045.74 : 84,213.42 = 39,529.32 : x
  2. Step 2: Convert to fraction form
    61,045.74/84,213.42 = 39,529.32/x
  3. Step 3: Cross multiply
    61,045.74x = 84,213.42 × 39,529.32
  4. Step 4: Simplify right side
    61,045.74x = 3,328,899,227.47
  5. Step 5: Solve for x
    x = 3,328,899,227.47/61,045.74
  6. Step 6: Final answer
    x = 54,531.23

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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.