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Finding the Fourth Proportional to 57,788.68, 86,686.02 and 18,348.88

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Solution

The fourth proportional to 57,788.68, 86,686.02 and 18,348.88 is: 27,524.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,788.68 : 86,686.02 = 18,348.88 : x
  2. Step 2: Convert to fraction form
    57,788.68/86,686.02 = 18,348.88/x
  3. Step 3: Cross multiply
    57,788.68x = 86,686.02 × 18,348.88
  4. Step 4: Simplify right side
    57,788.68x = 1,590,591,378.66
  5. Step 5: Solve for x
    x = 1,590,591,378.66/57,788.68
  6. Step 6: Final answer
    x = 27,524.27

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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.