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Finding the Third Proportional to 12,122.50 and 16,371

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Solution

The third proportional to 12,122.50 and 16,371 is: 22,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.50 : 16,371 = 16,371 : x
  2. Step 2: Convert to fraction form
    12,122.50/16,371 = 16,371/x
  3. Step 3: Cross multiply
    12,122.50x = 16,371 × 16,371
  4. Step 4: Simplify right side
    12,122.50x = 268,009,641
  5. Step 5: Solve for x
    x = 268,009,641/12,122.50
  6. Step 6: Final answer
    x = 22,108.45

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.