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Finding the Fourth Proportional to 50,528.79, 69,728.85 and 27,869.90

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Solution

The fourth proportional to 50,528.79, 69,728.85 and 27,869.90 is: 38,459.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,528.79 : 69,728.85 = 27,869.90 : x
  2. Step 2: Convert to fraction form
    50,528.79/69,728.85 = 27,869.90/x
  3. Step 3: Cross multiply
    50,528.79x = 69,728.85 × 27,869.90
  4. Step 4: Simplify right side
    50,528.79x = 1,943,335,727.97
  5. Step 5: Solve for x
    x = 1,943,335,727.97/50,528.79
  6. Step 6: Final answer
    x = 38,459.97

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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.