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Finding the Fourth Proportional to 49,448.52, 74,172.02 and 12,008.88

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Solution

The fourth proportional to 49,448.52, 74,172.02 and 12,008.88 is: 18,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,448.52 : 74,172.02 = 12,008.88 : x
  2. Step 2: Convert to fraction form
    49,448.52/74,172.02 = 12,008.88/x
  3. Step 3: Cross multiply
    49,448.52x = 74,172.02 × 12,008.88
  4. Step 4: Simplify right side
    49,448.52x = 890,722,887.54
  5. Step 5: Solve for x
    x = 890,722,887.54/49,448.52
  6. Step 6: Final answer
    x = 18,013.14

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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.