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Finding the Third Proportional to 2,157.19 and 2,476.13

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Solution

The third proportional to 2,157.19 and 2,476.13 is: 2,842.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.19 : 2,476.13 = 2,476.13 : x
  2. Step 2: Convert to fraction form
    2,157.19/2,476.13 = 2,476.13/x
  3. Step 3: Cross multiply
    2,157.19x = 2,476.13 × 2,476.13
  4. Step 4: Simplify right side
    2,157.19x = 6,131,195.02
  5. Step 5: Solve for x
    x = 6,131,195.02/2,157.19
  6. Step 6: Final answer
    x = 2,842.22

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.