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Finding the Fourth Proportional to 5,310.77, 7,926.39 and 4,960.85

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Solution

The fourth proportional to 5,310.77, 7,926.39 and 4,960.85 is: 7,404.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.77 : 7,926.39 = 4,960.85 : x
  2. Step 2: Convert to fraction form
    5,310.77/7,926.39 = 4,960.85/x
  3. Step 3: Cross multiply
    5,310.77x = 7,926.39 × 4,960.85
  4. Step 4: Simplify right side
    5,310.77x = 39,321,592.20
  5. Step 5: Solve for x
    x = 39,321,592.20/5,310.77
  6. Step 6: Final answer
    x = 7,404.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.