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Finding the Fourth Proportional to 8,392.30, 11,593.18 and 7,949.44

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Solution

The fourth proportional to 8,392.30, 11,593.18 and 7,949.44 is: 10,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.30 : 11,593.18 = 7,949.44 : x
  2. Step 2: Convert to fraction form
    8,392.30/11,593.18 = 7,949.44/x
  3. Step 3: Cross multiply
    8,392.30x = 11,593.18 × 7,949.44
  4. Step 4: Simplify right side
    8,392.30x = 92,159,288.82
  5. Step 5: Solve for x
    x = 92,159,288.82/8,392.30
  6. Step 6: Final answer
    x = 10,981.41

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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.