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Finding the Fourth Proportional to 59,909.76, 89,873.28 and 18,360

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Solution

The fourth proportional to 59,909.76, 89,873.28 and 18,360 is: 27,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,909.76 : 89,873.28 = 18,360 : x
  2. Step 2: Convert to fraction form
    59,909.76/89,873.28 = 18,360/x
  3. Step 3: Cross multiply
    59,909.76x = 89,873.28 × 18,360
  4. Step 4: Simplify right side
    59,909.76x = 1,650,073,420.80
  5. Step 5: Solve for x
    x = 1,650,073,420.80/59,909.76
  6. Step 6: Final answer
    x = 27,542.65

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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.