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Finding the Fourth Proportional to 6,650.61, 9,950.85 and 3,972.27

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Solution

The fourth proportional to 6,650.61, 9,950.85 and 3,972.27 is: 5,943.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.61 : 9,950.85 = 3,972.27 : x
  2. Step 2: Convert to fraction form
    6,650.61/9,950.85 = 3,972.27/x
  3. Step 3: Cross multiply
    6,650.61x = 9,950.85 × 3,972.27
  4. Step 4: Simplify right side
    6,650.61x = 39,527,500.25
  5. Step 5: Solve for x
    x = 39,527,500.25/6,650.61
  6. Step 6: Final answer
    x = 5,943.44

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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.