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Finding the Fourth Proportional to 61,559.78, 84,953.25 and 34,702.31

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Solution

The fourth proportional to 61,559.78, 84,953.25 and 34,702.31 is: 47,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,559.78 : 84,953.25 = 34,702.31 : x
  2. Step 2: Convert to fraction form
    61,559.78/84,953.25 = 34,702.31/x
  3. Step 3: Cross multiply
    61,559.78x = 84,953.25 × 34,702.31
  4. Step 4: Simplify right side
    61,559.78x = 2,948,073,592.24
  5. Step 5: Solve for x
    x = 2,948,073,592.24/61,559.78
  6. Step 6: Final answer
    x = 47,889.61

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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.