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Finding the Fourth Proportional to 57,770.22, 86,648.76 and 15,647.88

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Solution

The fourth proportional to 57,770.22, 86,648.76 and 15,647.88 is: 23,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,770.22 : 86,648.76 = 15,647.88 : x
  2. Step 2: Convert to fraction form
    57,770.22/86,648.76 = 15,647.88/x
  3. Step 3: Cross multiply
    57,770.22x = 86,648.76 × 15,647.88
  4. Step 4: Simplify right side
    57,770.22x = 1,355,869,398.63
  5. Step 5: Solve for x
    x = 1,355,869,398.63/57,770.22
  6. Step 6: Final answer
    x = 23,470.04

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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.