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Finding the Fourth Proportional to 66,375.92, 91,598.40 and 36,161.16

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Solution

The fourth proportional to 66,375.92, 91,598.40 and 36,161.16 is: 49,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,375.92 : 91,598.40 = 36,161.16 : x
  2. Step 2: Convert to fraction form
    66,375.92/91,598.40 = 36,161.16/x
  3. Step 3: Cross multiply
    66,375.92x = 91,598.40 × 36,161.16
  4. Step 4: Simplify right side
    66,375.92x = 3,312,304,398.14
  5. Step 5: Solve for x
    x = 3,312,304,398.14/66,375.92
  6. Step 6: Final answer
    x = 49,902.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.