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Finding the Fourth Proportional to 50,687.28, 69,968.07 and 45,372.87

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Solution

The fourth proportional to 50,687.28, 69,968.07 and 45,372.87 is: 62,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,687.28 : 69,968.07 = 45,372.87 : x
  2. Step 2: Convert to fraction form
    50,687.28/69,968.07 = 45,372.87/x
  3. Step 3: Cross multiply
    50,687.28x = 69,968.07 × 45,372.87
  4. Step 4: Simplify right side
    50,687.28x = 3,174,652,144.26
  5. Step 5: Solve for x
    x = 3,174,652,144.26/50,687.28
  6. Step 6: Final answer
    x = 62,632.13

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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.