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Finding the Fourth Proportional to 59,686.88, 89,309.45 and 36,008.15

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Solution

The fourth proportional to 59,686.88, 89,309.45 and 36,008.15 is: 53,878.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,686.88 : 89,309.45 = 36,008.15 : x
  2. Step 2: Convert to fraction form
    59,686.88/89,309.45 = 36,008.15/x
  3. Step 3: Cross multiply
    59,686.88x = 89,309.45 × 36,008.15
  4. Step 4: Simplify right side
    59,686.88x = 3,215,867,715.49
  5. Step 5: Solve for x
    x = 3,215,867,715.49/59,686.88
  6. Step 6: Final answer
    x = 53,878.98

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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.