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Finding the Fourth Proportional to 7,343.88, 10,988.22 and 4,371.38

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Solution

The fourth proportional to 7,343.88, 10,988.22 and 4,371.38 is: 6,540.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,343.88 : 10,988.22 = 4,371.38 : x
  2. Step 2: Convert to fraction form
    7,343.88/10,988.22 = 4,371.38/x
  3. Step 3: Cross multiply
    7,343.88x = 10,988.22 × 4,371.38
  4. Step 4: Simplify right side
    7,343.88x = 48,033,685.14
  5. Step 5: Solve for x
    x = 48,033,685.14/7,343.88
  6. Step 6: Final answer
    x = 6,540.64

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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.