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Finding the Fourth Proportional to 60,469.68, 90,701.64 and 18,347.88

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Solution

The fourth proportional to 60,469.68, 90,701.64 and 18,347.88 is: 27,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,469.68 : 90,701.64 = 18,347.88 : x
  2. Step 2: Convert to fraction form
    60,469.68/90,701.64 = 18,347.88/x
  3. Step 3: Cross multiply
    60,469.68x = 90,701.64 × 18,347.88
  4. Step 4: Simplify right side
    60,469.68x = 1,664,182,806.52
  5. Step 5: Solve for x
    x = 1,664,182,806.52/60,469.68
  6. Step 6: Final answer
    x = 27,520.95

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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.