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Finding the Fourth Proportional to 58,872.15, 81,241.88 and 33,380.91

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Solution

The fourth proportional to 58,872.15, 81,241.88 and 33,380.91 is: 46,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,872.15 : 81,241.88 = 33,380.91 : x
  2. Step 2: Convert to fraction form
    58,872.15/81,241.88 = 33,380.91/x
  3. Step 3: Cross multiply
    58,872.15x = 81,241.88 × 33,380.91
  4. Step 4: Simplify right side
    58,872.15x = 2,711,927,717.61
  5. Step 5: Solve for x
    x = 2,711,927,717.61/58,872.15
  6. Step 6: Final answer
    x = 46,064.70

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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.