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Finding the Fourth Proportional to 9,099.91, 13,649.87 and 2,860.48

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Solution

The fourth proportional to 9,099.91, 13,649.87 and 2,860.48 is: 4,290.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,099.91 : 13,649.87 = 2,860.48 : x
  2. Step 2: Convert to fraction form
    9,099.91/13,649.87 = 2,860.48/x
  3. Step 3: Cross multiply
    9,099.91x = 13,649.87 × 2,860.48
  4. Step 4: Simplify right side
    9,099.91x = 39,045,180.14
  5. Step 5: Solve for x
    x = 39,045,180.14/9,099.91
  6. Step 6: Final answer
    x = 4,290.72

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Similar ratio
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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.