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Finding the Fourth Proportional to 79,282.28, 109,409.52 and 43,472.92

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Solution

The fourth proportional to 79,282.28, 109,409.52 and 43,472.92 is: 59,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,282.28 : 109,409.52 = 43,472.92 : x
  2. Step 2: Convert to fraction form
    79,282.28/109,409.52 = 43,472.92/x
  3. Step 3: Cross multiply
    79,282.28x = 109,409.52 × 43,472.92
  4. Step 4: Simplify right side
    79,282.28x = 4,756,351,310.20
  5. Step 5: Solve for x
    x = 4,756,351,310.20/79,282.28
  6. Step 6: Final answer
    x = 59,992.62

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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.