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Finding the Fourth Proportional to 65,791.24, 90,791.46 and 35,983.24

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Solution

The fourth proportional to 65,791.24, 90,791.46 and 35,983.24 is: 49,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,791.24 : 90,791.46 = 35,983.24 : x
  2. Step 2: Convert to fraction form
    65,791.24/90,791.46 = 35,983.24/x
  3. Step 3: Cross multiply
    65,791.24x = 90,791.46 × 35,983.24
  4. Step 4: Simplify right side
    65,791.24x = 3,266,970,895.13
  5. Step 5: Solve for x
    x = 3,266,970,895.13/65,791.24
  6. Step 6: Final answer
    x = 49,656.62

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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.