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Finding the Fourth Proportional to 5,006.77, 6,910.20 and 2,912.11

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Solution

The fourth proportional to 5,006.77, 6,910.20 and 2,912.11 is: 4,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,006.77 : 6,910.20 = 2,912.11 : x
  2. Step 2: Convert to fraction form
    5,006.77/6,910.20 = 2,912.11/x
  3. Step 3: Cross multiply
    5,006.77x = 6,910.20 × 2,912.11
  4. Step 4: Simplify right side
    5,006.77x = 20,123,262.52
  5. Step 5: Solve for x
    x = 20,123,262.52/5,006.77
  6. Step 6: Final answer
    x = 4,019.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.