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Finding the Third Proportional to 21,595.50 and 28,701

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Solution

The third proportional to 21,595.50 and 28,701 is: 38,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.50 : 28,701 = 28,701 : x
  2. Step 2: Convert to fraction form
    21,595.50/28,701 = 28,701/x
  3. Step 3: Cross multiply
    21,595.50x = 28,701 × 28,701
  4. Step 4: Simplify right side
    21,595.50x = 823,747,401
  5. Step 5: Solve for x
    x = 823,747,401/21,595.50
  6. Step 6: Final answer
    x = 38,144.40

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.