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Finding the Third Proportional to 971.13 and 2,114.69

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Solution

The third proportional to 971.13 and 2,114.69 is: 4,604.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    971.13 : 2,114.69 = 2,114.69 : x
  2. Step 2: Convert to fraction form
    971.13/2,114.69 = 2,114.69/x
  3. Step 3: Cross multiply
    971.13x = 2,114.69 × 2,114.69
  4. Step 4: Simplify right side
    971.13x = 4,471,903.22
  5. Step 5: Solve for x
    x = 4,471,903.22/971.13
  6. Step 6: Final answer
    x = 4,604.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.