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Finding the Fourth Proportional to 11,310.30, 15,597.99 and 7,061.75

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Solution

The fourth proportional to 11,310.30, 15,597.99 and 7,061.75 is: 9,738.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.30 : 15,597.99 = 7,061.75 : x
  2. Step 2: Convert to fraction form
    11,310.30/15,597.99 = 7,061.75/x
  3. Step 3: Cross multiply
    11,310.30x = 15,597.99 × 7,061.75
  4. Step 4: Simplify right side
    11,310.30x = 110,149,105.88
  5. Step 5: Solve for x
    x = 110,149,105.88/11,310.30
  6. Step 6: Final answer
    x = 9,738.83

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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.