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Finding the Fourth Proportional to 45,011, 62,115.18 and 25,139

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Solution

The fourth proportional to 45,011, 62,115.18 and 25,139 is: 34,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,011 : 62,115.18 = 25,139 : x
  2. Step 2: Convert to fraction form
    45,011/62,115.18 = 25,139/x
  3. Step 3: Cross multiply
    45,011x = 62,115.18 × 25,139
  4. Step 4: Simplify right side
    45,011x = 1,561,513,510.02
  5. Step 5: Solve for x
    x = 1,561,513,510.02/45,011
  6. Step 6: Final answer
    x = 34,691.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.