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Finding the Fourth Proportional to 7,255.88, 10,013.20 and 4,069.85

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Solution

The fourth proportional to 7,255.88, 10,013.20 and 4,069.85 is: 5,616.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.88 : 10,013.20 = 4,069.85 : x
  2. Step 2: Convert to fraction form
    7,255.88/10,013.20 = 4,069.85/x
  3. Step 3: Cross multiply
    7,255.88x = 10,013.20 × 4,069.85
  4. Step 4: Simplify right side
    7,255.88x = 40,752,241.00
  5. Step 5: Solve for x
    x = 40,752,241.00/7,255.88
  6. Step 6: Final answer
    x = 5,616.44

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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.