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Finding the Fourth Proportional to 7,947.04, 11,920.56 and 2,753.44

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Solution

The fourth proportional to 7,947.04, 11,920.56 and 2,753.44 is: 4,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.04 : 11,920.56 = 2,753.44 : x
  2. Step 2: Convert to fraction form
    7,947.04/11,920.56 = 2,753.44/x
  3. Step 3: Cross multiply
    7,947.04x = 11,920.56 × 2,753.44
  4. Step 4: Simplify right side
    7,947.04x = 32,822,546.73
  5. Step 5: Solve for x
    x = 32,822,546.73/7,947.04
  6. Step 6: Final answer
    x = 4,130.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.