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Finding the Fourth Proportional to 20,672.60, 31,010.10 and 5,882.60

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Solution

The fourth proportional to 20,672.60, 31,010.10 and 5,882.60 is: 8,824.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.60 : 31,010.10 = 5,882.60 : x
  2. Step 2: Convert to fraction form
    20,672.60/31,010.10 = 5,882.60/x
  3. Step 3: Cross multiply
    20,672.60x = 31,010.10 × 5,882.60
  4. Step 4: Simplify right side
    20,672.60x = 182,420,014.26
  5. Step 5: Solve for x
    x = 182,420,014.26/20,672.60
  6. Step 6: Final answer
    x = 8,824.24

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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.