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Finding the Fourth Proportional to 60,438.72, 90,687.78 and 27,182.28

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Solution

The fourth proportional to 60,438.72, 90,687.78 and 27,182.28 is: 40,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,438.72 : 90,687.78 = 27,182.28 : x
  2. Step 2: Convert to fraction form
    60,438.72/90,687.78 = 27,182.28/x
  3. Step 3: Cross multiply
    60,438.72x = 90,687.78 × 27,182.28
  4. Step 4: Simplify right side
    60,438.72x = 2,465,100,628.54
  5. Step 5: Solve for x
    x = 2,465,100,628.54/60,438.72
  6. Step 6: Final answer
    x = 40,786.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.