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Finding the Fourth Proportional to 35,251.38, 48,651.22 and 20,347.38

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Solution

The fourth proportional to 35,251.38, 48,651.22 and 20,347.38 is: 28,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,251.38 : 48,651.22 = 20,347.38 : x
  2. Step 2: Convert to fraction form
    35,251.38/48,651.22 = 20,347.38/x
  3. Step 3: Cross multiply
    35,251.38x = 48,651.22 × 20,347.38
  4. Step 4: Simplify right side
    35,251.38x = 989,924,860.80
  5. Step 5: Solve for x
    x = 989,924,860.80/35,251.38
  6. Step 6: Final answer
    x = 28,081.88

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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.