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Finding the Fourth Proportional to 61,917.72, 92,862.03 and 19,801.56

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Solution

The fourth proportional to 61,917.72, 92,862.03 and 19,801.56 is: 29,697.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,917.72 : 92,862.03 = 19,801.56 : x
  2. Step 2: Convert to fraction form
    61,917.72/92,862.03 = 19,801.56/x
  3. Step 3: Cross multiply
    61,917.72x = 92,862.03 × 19,801.56
  4. Step 4: Simplify right side
    61,917.72x = 1,838,813,058.77
  5. Step 5: Solve for x
    x = 1,838,813,058.77/61,917.72
  6. Step 6: Final answer
    x = 29,697.69

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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.