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Finding the Fourth Proportional to 60,069.11, 90,016.18 and 28,867.91

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Solution

The fourth proportional to 60,069.11, 90,016.18 and 28,867.91 is: 43,259.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,069.11 : 90,016.18 = 28,867.91 : x
  2. Step 2: Convert to fraction form
    60,069.11/90,016.18 = 28,867.91/x
  3. Step 3: Cross multiply
    60,069.11x = 90,016.18 × 28,867.91
  4. Step 4: Simplify right side
    60,069.11x = 2,598,578,982.78
  5. Step 5: Solve for x
    x = 2,598,578,982.78/60,069.11
  6. Step 6: Final answer
    x = 43,259.82

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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.