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Finding the Third Proportional to 2,142 and 4,716

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Solution

The third proportional to 2,142 and 4,716 is: 10,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142 : 4,716 = 4,716 : x
  2. Step 2: Convert to fraction form
    2,142/4,716 = 4,716/x
  3. Step 3: Cross multiply
    2,142x = 4,716 × 4,716
  4. Step 4: Simplify right side
    2,142x = 22,240,656
  5. Step 5: Solve for x
    x = 22,240,656/2,142
  6. Step 6: Final answer
    x = 10,383.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.