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Finding the Fourth Proportional to 7,914.76, 11,872.17 and 5,011.52

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Solution

The fourth proportional to 7,914.76, 11,872.17 and 5,011.52 is: 7,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.76 : 11,872.17 = 5,011.52 : x
  2. Step 2: Convert to fraction form
    7,914.76/11,872.17 = 5,011.52/x
  3. Step 3: Cross multiply
    7,914.76x = 11,872.17 × 5,011.52
  4. Step 4: Simplify right side
    7,914.76x = 59,497,624.82
  5. Step 5: Solve for x
    x = 59,497,624.82/7,914.76
  6. Step 6: Final answer
    x = 7,517.30

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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.