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Finding the Fourth Proportional to 8,292.91, 12,439.37 and 2,744.77

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Solution

The fourth proportional to 8,292.91, 12,439.37 and 2,744.77 is: 4,117.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,292.91 : 12,439.37 = 2,744.77 : x
  2. Step 2: Convert to fraction form
    8,292.91/12,439.37 = 2,744.77/x
  3. Step 3: Cross multiply
    8,292.91x = 12,439.37 × 2,744.77
  4. Step 4: Simplify right side
    8,292.91x = 34,143,133.67
  5. Step 5: Solve for x
    x = 34,143,133.67/8,292.91
  6. Step 6: Final answer
    x = 4,117.15

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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.