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Finding the Third Proportional to 5,385.19 and 8,045.44

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Solution

The third proportional to 5,385.19 and 8,045.44 is: 12,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.19 : 8,045.44 = 8,045.44 : x
  2. Step 2: Convert to fraction form
    5,385.19/8,045.44 = 8,045.44/x
  3. Step 3: Cross multiply
    5,385.19x = 8,045.44 × 8,045.44
  4. Step 4: Simplify right side
    5,385.19x = 64,729,064.57
  5. Step 5: Solve for x
    x = 64,729,064.57/5,385.19
  6. Step 6: Final answer
    x = 12,019.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.