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Finding the Fourth Proportional to 7,797.65, 10,753.31 and 5,104.85

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Solution

The fourth proportional to 7,797.65, 10,753.31 and 5,104.85 is: 7,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,797.65 : 10,753.31 = 5,104.85 : x
  2. Step 2: Convert to fraction form
    7,797.65/10,753.31 = 5,104.85/x
  3. Step 3: Cross multiply
    7,797.65x = 10,753.31 × 5,104.85
  4. Step 4: Simplify right side
    7,797.65x = 54,893,993.55
  5. Step 5: Solve for x
    x = 54,893,993.55/7,797.65
  6. Step 6: Final answer
    x = 7,039.82

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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.