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Finding the Fourth Proportional to 66,864.14, 100,301.15 and 22,490.72

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Solution

The fourth proportional to 66,864.14, 100,301.15 and 22,490.72 is: 33,737.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864.14 : 100,301.15 = 22,490.72 : x
  2. Step 2: Convert to fraction form
    66,864.14/100,301.15 = 22,490.72/x
  3. Step 3: Cross multiply
    66,864.14x = 100,301.15 × 22,490.72
  4. Step 4: Simplify right side
    66,864.14x = 2,255,844,635.05
  5. Step 5: Solve for x
    x = 2,255,844,635.05/66,864.14
  6. Step 6: Final answer
    x = 33,737.74

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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.