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Finding the Third Proportional to 1,943 and 4,421

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Solution

The third proportional to 1,943 and 4,421 is: 10,059.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943 : 4,421 = 4,421 : x
  2. Step 2: Convert to fraction form
    1,943/4,421 = 4,421/x
  3. Step 3: Cross multiply
    1,943x = 4,421 × 4,421
  4. Step 4: Simplify right side
    1,943x = 19,545,241
  5. Step 5: Solve for x
    x = 19,545,241/1,943
  6. Step 6: Final answer
    x = 10,059.31

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.