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Finding the Third Proportional to 2,176.13 and 3,315.19

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Solution

The third proportional to 2,176.13 and 3,315.19 is: 5,050.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.13 : 3,315.19 = 3,315.19 : x
  2. Step 2: Convert to fraction form
    2,176.13/3,315.19 = 3,315.19/x
  3. Step 3: Cross multiply
    2,176.13x = 3,315.19 × 3,315.19
  4. Step 4: Simplify right side
    2,176.13x = 10,990,468.16
  5. Step 5: Solve for x
    x = 10,990,468.16/2,176.13
  6. Step 6: Final answer
    x = 5,050.48

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.