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Finding the Fourth Proportional to 50,343.70, 69,371.95 and 38,943.96

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Solution

The fourth proportional to 50,343.70, 69,371.95 and 38,943.96 is: 53,663.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,343.70 : 69,371.95 = 38,943.96 : x
  2. Step 2: Convert to fraction form
    50,343.70/69,371.95 = 38,943.96/x
  3. Step 3: Cross multiply
    50,343.70x = 69,371.95 × 38,943.96
  4. Step 4: Simplify right side
    50,343.70x = 2,701,618,251.20
  5. Step 5: Solve for x
    x = 2,701,618,251.20/50,343.70
  6. Step 6: Final answer
    x = 53,663.49

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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.