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Finding the Third Proportional to 15,223.50 and 22,419

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Solution

The third proportional to 15,223.50 and 22,419 is: 33,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,223.50 : 22,419 = 22,419 : x
  2. Step 2: Convert to fraction form
    15,223.50/22,419 = 22,419/x
  3. Step 3: Cross multiply
    15,223.50x = 22,419 × 22,419
  4. Step 4: Simplify right side
    15,223.50x = 502,611,561
  5. Step 5: Solve for x
    x = 502,611,561/15,223.50
  6. Step 6: Final answer
    x = 33,015.51

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.