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Finding the Fourth Proportional to 7,271.91, 10,909.23 and 2,340.23

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Solution

The fourth proportional to 7,271.91, 10,909.23 and 2,340.23 is: 3,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.91 : 10,909.23 = 2,340.23 : x
  2. Step 2: Convert to fraction form
    7,271.91/10,909.23 = 2,340.23/x
  3. Step 3: Cross multiply
    7,271.91x = 10,909.23 × 2,340.23
  4. Step 4: Simplify right side
    7,271.91x = 25,530,052.78
  5. Step 5: Solve for x
    x = 25,530,052.78/7,271.91
  6. Step 6: Final answer
    x = 3,510.78

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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.