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Finding the Fourth Proportional to 6,715.38, 9,266.22 and 3,731.22

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Solution

The fourth proportional to 6,715.38, 9,266.22 and 3,731.22 is: 5,148.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,715.38 : 9,266.22 = 3,731.22 : x
  2. Step 2: Convert to fraction form
    6,715.38/9,266.22 = 3,731.22/x
  3. Step 3: Cross multiply
    6,715.38x = 9,266.22 × 3,731.22
  4. Step 4: Simplify right side
    6,715.38x = 34,574,305.39
  5. Step 5: Solve for x
    x = 34,574,305.39/6,715.38
  6. Step 6: Final answer
    x = 5,148.53

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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.