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Finding the Fourth Proportional to 35,359.71, 48,792.31 and 20,251.47

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Solution

The fourth proportional to 35,359.71, 48,792.31 and 20,251.47 is: 27,944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,359.71 : 48,792.31 = 20,251.47 : x
  2. Step 2: Convert to fraction form
    35,359.71/48,792.31 = 20,251.47/x
  3. Step 3: Cross multiply
    35,359.71x = 48,792.31 × 20,251.47
  4. Step 4: Simplify right side
    35,359.71x = 988,116,002.20
  5. Step 5: Solve for x
    x = 988,116,002.20/35,359.71
  6. Step 6: Final answer
    x = 27,944.69

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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.