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Finding the Fourth Proportional to 6,988.92, 10,476.90 and 3,699.24

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Solution

The fourth proportional to 6,988.92, 10,476.90 and 3,699.24 is: 5,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.92 : 10,476.90 = 3,699.24 : x
  2. Step 2: Convert to fraction form
    6,988.92/10,476.90 = 3,699.24/x
  3. Step 3: Cross multiply
    6,988.92x = 10,476.90 × 3,699.24
  4. Step 4: Simplify right side
    6,988.92x = 38,756,567.56
  5. Step 5: Solve for x
    x = 38,756,567.56/6,988.92
  6. Step 6: Final answer
    x = 5,545.43

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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.