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Finding the Fourth Proportional to 59,781.54, 89,677.80 and 15,408.45

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Solution

The fourth proportional to 59,781.54, 89,677.80 and 15,408.45 is: 23,114.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,781.54 : 89,677.80 = 15,408.45 : x
  2. Step 2: Convert to fraction form
    59,781.54/89,677.80 = 15,408.45/x
  3. Step 3: Cross multiply
    59,781.54x = 89,677.80 × 15,408.45
  4. Step 4: Simplify right side
    59,781.54x = 1,381,795,897.41
  5. Step 5: Solve for x
    x = 1,381,795,897.41/59,781.54
  6. Step 6: Final answer
    x = 23,114.09

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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.