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Finding the Fourth Proportional to 66,478.32, 99,695.80 and 22,093.16

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Solution

The fourth proportional to 66,478.32, 99,695.80 and 22,093.16 is: 33,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,478.32 : 99,695.80 = 22,093.16 : x
  2. Step 2: Convert to fraction form
    66,478.32/99,695.80 = 22,093.16/x
  3. Step 3: Cross multiply
    66,478.32x = 99,695.80 × 22,093.16
  4. Step 4: Simplify right side
    66,478.32x = 2,202,595,260.73
  5. Step 5: Solve for x
    x = 2,202,595,260.73/66,478.32
  6. Step 6: Final answer
    x = 33,132.53

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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.