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Finding the Fourth Proportional to 50,387.67, 69,536.64 and 27,728.30

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Solution

The fourth proportional to 50,387.67, 69,536.64 and 27,728.30 is: 38,265.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,387.67 : 69,536.64 = 27,728.30 : x
  2. Step 2: Convert to fraction form
    50,387.67/69,536.64 = 27,728.30/x
  3. Step 3: Cross multiply
    50,387.67x = 69,536.64 × 27,728.30
  4. Step 4: Simplify right side
    50,387.67x = 1,928,132,814.91
  5. Step 5: Solve for x
    x = 1,928,132,814.91/50,387.67
  6. Step 6: Final answer
    x = 38,265.96

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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.