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Finding the Fourth Proportional to 6,715.83, 9,266.85 and 3,731.70

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Solution

The fourth proportional to 6,715.83, 9,266.85 and 3,731.70 is: 5,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,715.83 : 9,266.85 = 3,731.70 : x
  2. Step 2: Convert to fraction form
    6,715.83/9,266.85 = 3,731.70/x
  3. Step 3: Cross multiply
    6,715.83x = 9,266.85 × 3,731.70
  4. Step 4: Simplify right side
    6,715.83x = 34,581,104.15
  5. Step 5: Solve for x
    x = 34,581,104.15/6,715.83
  6. Step 6: Final answer
    x = 5,149.19

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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.