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Finding the Fourth Proportional to 4,381.92, 6,564.24 and 1,910.88

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Solution

The fourth proportional to 4,381.92, 6,564.24 and 1,910.88 is: 2,862.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,381.92 : 6,564.24 = 1,910.88 : x
  2. Step 2: Convert to fraction form
    4,381.92/6,564.24 = 1,910.88/x
  3. Step 3: Cross multiply
    4,381.92x = 6,564.24 × 1,910.88
  4. Step 4: Simplify right side
    4,381.92x = 12,543,474.93
  5. Step 5: Solve for x
    x = 12,543,474.93/4,381.92
  6. Step 6: Final answer
    x = 2,862.55

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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.