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Finding the Fourth Proportional to 66,785.62, 92,164.31 and 36,159.04

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Solution

The fourth proportional to 66,785.62, 92,164.31 and 36,159.04 is: 49,899.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,785.62 : 92,164.31 = 36,159.04 : x
  2. Step 2: Convert to fraction form
    66,785.62/92,164.31 = 36,159.04/x
  3. Step 3: Cross multiply
    66,785.62x = 92,164.31 × 36,159.04
  4. Step 4: Simplify right side
    66,785.62x = 3,332,572,940.17
  5. Step 5: Solve for x
    x = 3,332,572,940.17/66,785.62
  6. Step 6: Final answer
    x = 49,899.56

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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.