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Finding the Fourth Proportional to 15,316.75, 22,983.90 and 8,296.75

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Solution

The fourth proportional to 15,316.75, 22,983.90 and 8,296.75 is: 12,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.75 : 22,983.90 = 8,296.75 : x
  2. Step 2: Convert to fraction form
    15,316.75/22,983.90 = 8,296.75/x
  3. Step 3: Cross multiply
    15,316.75x = 22,983.90 × 8,296.75
  4. Step 4: Simplify right side
    15,316.75x = 190,691,672.33
  5. Step 5: Solve for x
    x = 190,691,672.33/15,316.75
  6. Step 6: Final answer
    x = 12,449.88

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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.