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Finding the Fourth Proportional to 7,326.98, 10,991.23 and 2,132.85

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Solution

The fourth proportional to 7,326.98, 10,991.23 and 2,132.85 is: 3,199.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.98 : 10,991.23 = 2,132.85 : x
  2. Step 2: Convert to fraction form
    7,326.98/10,991.23 = 2,132.85/x
  3. Step 3: Cross multiply
    7,326.98x = 10,991.23 × 2,132.85
  4. Step 4: Simplify right side
    7,326.98x = 23,442,639.57
  5. Step 5: Solve for x
    x = 23,442,639.57/7,326.98
  6. Step 6: Final answer
    x = 3,199.50

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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.