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Finding the Fourth Proportional to 47,751.86, 71,658.88 and 18,169.95

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Solution

The fourth proportional to 47,751.86, 71,658.88 and 18,169.95 is: 27,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,751.86 : 71,658.88 = 18,169.95 : x
  2. Step 2: Convert to fraction form
    47,751.86/71,658.88 = 18,169.95/x
  3. Step 3: Cross multiply
    47,751.86x = 71,658.88 × 18,169.95
  4. Step 4: Simplify right side
    47,751.86x = 1,302,038,489.95
  5. Step 5: Solve for x
    x = 1,302,038,489.95/47,751.86
  6. Step 6: Final answer
    x = 27,266.76

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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.