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Finding the Fourth Proportional to 7,472.53, 11,208.39 and 2,278

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Solution

The fourth proportional to 7,472.53, 11,208.39 and 2,278 is: 3,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.53 : 11,208.39 = 2,278 : x
  2. Step 2: Convert to fraction form
    7,472.53/11,208.39 = 2,278/x
  3. Step 3: Cross multiply
    7,472.53x = 11,208.39 × 2,278
  4. Step 4: Simplify right side
    7,472.53x = 25,532,712.42
  5. Step 5: Solve for x
    x = 25,532,712.42/7,472.53
  6. Step 6: Final answer
    x = 3,416.88

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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.