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Finding the Fourth Proportional to 58,671.48, 88,016.40 and 21,227.61

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Solution

The fourth proportional to 58,671.48, 88,016.40 and 21,227.61 is: 31,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,671.48 : 88,016.40 = 21,227.61 : x
  2. Step 2: Convert to fraction form
    58,671.48/88,016.40 = 21,227.61/x
  3. Step 3: Cross multiply
    58,671.48x = 88,016.40 × 21,227.61
  4. Step 4: Simplify right side
    58,671.48x = 1,868,377,812.80
  5. Step 5: Solve for x
    x = 1,868,377,812.80/58,671.48
  6. Step 6: Final answer
    x = 31,844.74

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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.