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Finding the Fourth Proportional to 50,761.53, 70,049.88 and 28,100.52

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Solution

The fourth proportional to 50,761.53, 70,049.88 and 28,100.52 is: 38,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,761.53 : 70,049.88 = 28,100.52 : x
  2. Step 2: Convert to fraction form
    50,761.53/70,049.88 = 28,100.52/x
  3. Step 3: Cross multiply
    50,761.53x = 70,049.88 × 28,100.52
  4. Step 4: Simplify right side
    50,761.53x = 1,968,438,053.94
  5. Step 5: Solve for x
    x = 1,968,438,053.94/50,761.53
  6. Step 6: Final answer
    x = 38,778.15

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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.