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Finding the Fourth Proportional to 61,253.72, 84,531.02 and 34,402.04

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Solution

The fourth proportional to 61,253.72, 84,531.02 and 34,402.04 is: 47,475.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,253.72 : 84,531.02 = 34,402.04 : x
  2. Step 2: Convert to fraction form
    61,253.72/84,531.02 = 34,402.04/x
  3. Step 3: Cross multiply
    61,253.72x = 84,531.02 × 34,402.04
  4. Step 4: Simplify right side
    61,253.72x = 2,908,039,531.28
  5. Step 5: Solve for x
    x = 2,908,039,531.28/61,253.72
  6. Step 6: Final answer
    x = 47,475.31

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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.