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Finding the Fourth Proportional to 10,375.67, 15,566.21 and 2,980.73

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Solution

The fourth proportional to 10,375.67, 15,566.21 and 2,980.73 is: 4,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,375.67 : 15,566.21 = 2,980.73 : x
  2. Step 2: Convert to fraction form
    10,375.67/15,566.21 = 2,980.73/x
  3. Step 3: Cross multiply
    10,375.67x = 15,566.21 × 2,980.73
  4. Step 4: Simplify right side
    10,375.67x = 46,398,669.13
  5. Step 5: Solve for x
    x = 46,398,669.13/10,375.67
  6. Step 6: Final answer
    x = 4,471.87

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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.