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Finding the Fourth Proportional to 12,377.52, 18,577.08 and 7,176.24

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Solution

The fourth proportional to 12,377.52, 18,577.08 and 7,176.24 is: 10,770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.52 : 18,577.08 = 7,176.24 : x
  2. Step 2: Convert to fraction form
    12,377.52/18,577.08 = 7,176.24/x
  3. Step 3: Cross multiply
    12,377.52x = 18,577.08 × 7,176.24
  4. Step 4: Simplify right side
    12,377.52x = 133,313,584.58
  5. Step 5: Solve for x
    x = 133,313,584.58/12,377.52
  6. Step 6: Final answer
    x = 10,770.62

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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.