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Finding the Fourth Proportional to 12,610.69, 18,927.72 and 6,375.11

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Solution

The fourth proportional to 12,610.69, 18,927.72 and 6,375.11 is: 9,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.69 : 18,927.72 = 6,375.11 : x
  2. Step 2: Convert to fraction form
    12,610.69/18,927.72 = 6,375.11/x
  3. Step 3: Cross multiply
    12,610.69x = 18,927.72 × 6,375.11
  4. Step 4: Simplify right side
    12,610.69x = 120,666,297.05
  5. Step 5: Solve for x
    x = 120,666,297.05/12,610.69
  6. Step 6: Final answer
    x = 9,568.57

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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.