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Finding the Fourth Proportional to 66,149.67, 91,287.20 and 35,935.24

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Solution

The fourth proportional to 66,149.67, 91,287.20 and 35,935.24 is: 49,590.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,149.67 : 91,287.20 = 35,935.24 : x
  2. Step 2: Convert to fraction form
    66,149.67/91,287.20 = 35,935.24/x
  3. Step 3: Cross multiply
    66,149.67x = 91,287.20 × 35,935.24
  4. Step 4: Simplify right side
    66,149.67x = 3,280,427,440.93
  5. Step 5: Solve for x
    x = 3,280,427,440.93/66,149.67
  6. Step 6: Final answer
    x = 49,590.99

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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.