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Finding the Fourth Proportional to 54,902.70, 82,357.65 and 15,461.10

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Solution

The fourth proportional to 54,902.70, 82,357.65 and 15,461.10 is: 23,192.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,902.70 : 82,357.65 = 15,461.10 : x
  2. Step 2: Convert to fraction form
    54,902.70/82,357.65 = 15,461.10/x
  3. Step 3: Cross multiply
    54,902.70x = 82,357.65 × 15,461.10
  4. Step 4: Simplify right side
    54,902.70x = 1,273,339,862.42
  5. Step 5: Solve for x
    x = 1,273,339,862.42/54,902.70
  6. Step 6: Final answer
    x = 23,192.66

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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.