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Finding the Fourth Proportional to 61,425.16, 84,765.74 and 34,567.66

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Solution

The fourth proportional to 61,425.16, 84,765.74 and 34,567.66 is: 47,702.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,425.16 : 84,765.74 = 34,567.66 : x
  2. Step 2: Convert to fraction form
    61,425.16/84,765.74 = 34,567.66/x
  3. Step 3: Cross multiply
    61,425.16x = 84,765.74 × 34,567.66
  4. Step 4: Simplify right side
    61,425.16x = 2,930,153,279.97
  5. Step 5: Solve for x
    x = 2,930,153,279.97/61,425.16
  6. Step 6: Final answer
    x = 47,702.82

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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.