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Finding the Third Proportional to 1,983.50 and 4,359

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Solution

The third proportional to 1,983.50 and 4,359 is: 9,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.50 : 4,359 = 4,359 : x
  2. Step 2: Convert to fraction form
    1,983.50/4,359 = 4,359/x
  3. Step 3: Cross multiply
    1,983.50x = 4,359 × 4,359
  4. Step 4: Simplify right side
    1,983.50x = 19,000,881
  5. Step 5: Solve for x
    x = 19,000,881/1,983.50
  6. Step 6: Final answer
    x = 9,579.47

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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.