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Finding the Fourth Proportional to 71,512.90, 107,235.98 and 26,532.46

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Solution

The fourth proportional to 71,512.90, 107,235.98 and 26,532.46 is: 39,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,512.90 : 107,235.98 = 26,532.46 : x
  2. Step 2: Convert to fraction form
    71,512.90/107,235.98 = 26,532.46/x
  3. Step 3: Cross multiply
    71,512.90x = 107,235.98 × 26,532.46
  4. Step 4: Simplify right side
    71,512.90x = 2,845,234,349.91
  5. Step 5: Solve for x
    x = 2,845,234,349.91/71,512.90
  6. Step 6: Final answer
    x = 39,786.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.