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Finding the Fourth Proportional to 7,472.03, 11,209.73 and 2,278.43

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Solution

The fourth proportional to 7,472.03, 11,209.73 and 2,278.43 is: 3,418.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.03 : 11,209.73 = 2,278.43 : x
  2. Step 2: Convert to fraction form
    7,472.03/11,209.73 = 2,278.43/x
  3. Step 3: Cross multiply
    7,472.03x = 11,209.73 × 2,278.43
  4. Step 4: Simplify right side
    7,472.03x = 25,540,585.12
  5. Step 5: Solve for x
    x = 25,540,585.12/7,472.03
  6. Step 6: Final answer
    x = 3,418.16

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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.