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Finding the Fourth Proportional to 12,375.87, 17,077.17 and 7,902.24

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Solution

The fourth proportional to 12,375.87, 17,077.17 and 7,902.24 is: 10,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.87 : 17,077.17 = 7,902.24 : x
  2. Step 2: Convert to fraction form
    12,375.87/17,077.17 = 7,902.24/x
  3. Step 3: Cross multiply
    12,375.87x = 17,077.17 × 7,902.24
  4. Step 4: Simplify right side
    12,375.87x = 134,947,813.66
  5. Step 5: Solve for x
    x = 134,947,813.66/12,375.87
  6. Step 6: Final answer
    x = 10,904.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.