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Finding the Fourth Proportional to 50,891.93, 70,230.80 and 28,234.36

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Solution

The fourth proportional to 50,891.93, 70,230.80 and 28,234.36 is: 38,963.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,891.93 : 70,230.80 = 28,234.36 : x
  2. Step 2: Convert to fraction form
    50,891.93/70,230.80 = 28,234.36/x
  3. Step 3: Cross multiply
    50,891.93x = 70,230.80 × 28,234.36
  4. Step 4: Simplify right side
    50,891.93x = 1,982,921,294.80
  5. Step 5: Solve for x
    x = 1,982,921,294.80/50,891.93
  6. Step 6: Final answer
    x = 38,963.37

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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.