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Finding the Fourth Proportional to 22,871.92, 34,311.12 and 7,289.68

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Solution

The fourth proportional to 22,871.92, 34,311.12 and 7,289.68 is: 10,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,871.92 : 34,311.12 = 7,289.68 : x
  2. Step 2: Convert to fraction form
    22,871.92/34,311.12 = 7,289.68/x
  3. Step 3: Cross multiply
    22,871.92x = 34,311.12 × 7,289.68
  4. Step 4: Simplify right side
    22,871.92x = 250,117,085.24
  5. Step 5: Solve for x
    x = 250,117,085.24/22,871.92
  6. Step 6: Final answer
    x = 10,935.55

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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.