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Finding the Fourth Proportional to 58,781.88, 88,193.30 and 21,856.44

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Solution

The fourth proportional to 58,781.88, 88,193.30 and 21,856.44 is: 32,792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,781.88 : 88,193.30 = 21,856.44 : x
  2. Step 2: Convert to fraction form
    58,781.88/88,193.30 = 21,856.44/x
  3. Step 3: Cross multiply
    58,781.88x = 88,193.30 × 21,856.44
  4. Step 4: Simplify right side
    58,781.88x = 1,927,591,569.85
  5. Step 5: Solve for x
    x = 1,927,591,569.85/58,781.88
  6. Step 6: Final answer
    x = 32,792.27

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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.