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Finding the Fourth Proportional to 35,398.57, 48,839.01 and 20,082.61

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Solution

The fourth proportional to 35,398.57, 48,839.01 and 20,082.61 is: 27,707.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,398.57 : 48,839.01 = 20,082.61 : x
  2. Step 2: Convert to fraction form
    35,398.57/48,839.01 = 20,082.61/x
  3. Step 3: Cross multiply
    35,398.57x = 48,839.01 × 20,082.61
  4. Step 4: Simplify right side
    35,398.57x = 980,814,790.62
  5. Step 5: Solve for x
    x = 980,814,790.62/35,398.57
  6. Step 6: Final answer
    x = 27,707.75

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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.