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Finding the Fourth Proportional to 61,872.24, 92,791.80 and 17,488.56

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Solution

The fourth proportional to 61,872.24, 92,791.80 and 17,488.56 is: 26,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,872.24 : 92,791.80 = 17,488.56 : x
  2. Step 2: Convert to fraction form
    61,872.24/92,791.80 = 17,488.56/x
  3. Step 3: Cross multiply
    61,872.24x = 92,791.80 × 17,488.56
  4. Step 4: Simplify right side
    61,872.24x = 1,622,794,961.81
  5. Step 5: Solve for x
    x = 1,622,794,961.81/61,872.24
  6. Step 6: Final answer
    x = 26,228.16

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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.