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Finding the Fourth Proportional to 37,172, 55,758 and 12,548

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Solution

The fourth proportional to 37,172, 55,758 and 12,548 is: 18,822

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,172 : 55,758 = 12,548 : x
  2. Step 2: Convert to fraction form
    37,172/55,758 = 12,548/x
  3. Step 3: Cross multiply
    37,172x = 55,758 × 12,548
  4. Step 4: Simplify right side
    37,172x = 699,651,384
  5. Step 5: Solve for x
    x = 699,651,384/37,172
  6. Step 6: Final answer
    x = 18,822

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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.