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Finding the Fourth Proportional to 60,668.38, 91,002.80 and 18,548.30

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Solution

The fourth proportional to 60,668.38, 91,002.80 and 18,548.30 is: 27,822.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,668.38 : 91,002.80 = 18,548.30 : x
  2. Step 2: Convert to fraction form
    60,668.38/91,002.80 = 18,548.30/x
  3. Step 3: Cross multiply
    60,668.38x = 91,002.80 × 18,548.30
  4. Step 4: Simplify right side
    60,668.38x = 1,687,947,235.24
  5. Step 5: Solve for x
    x = 1,687,947,235.24/60,668.38
  6. Step 6: Final answer
    x = 27,822.52

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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.