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Finding the Fourth Proportional to 15,168.84, 22,769.46 and 8,607.84

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Solution

The fourth proportional to 15,168.84, 22,769.46 and 8,607.84 is: 12,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,168.84 : 22,769.46 = 8,607.84 : x
  2. Step 2: Convert to fraction form
    15,168.84/22,769.46 = 8,607.84/x
  3. Step 3: Cross multiply
    15,168.84x = 22,769.46 × 8,607.84
  4. Step 4: Simplify right side
    15,168.84x = 195,995,868.57
  5. Step 5: Solve for x
    x = 195,995,868.57/15,168.84
  6. Step 6: Final answer
    x = 12,920.95

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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.