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Finding the Third Proportional to 15,400 and 22,440

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Solution

The third proportional to 15,400 and 22,440 is: 32,698.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400 : 22,440 = 22,440 : x
  2. Step 2: Convert to fraction form
    15,400/22,440 = 22,440/x
  3. Step 3: Cross multiply
    15,400x = 22,440 × 22,440
  4. Step 4: Simplify right side
    15,400x = 503,553,600
  5. Step 5: Solve for x
    x = 503,553,600/15,400
  6. Step 6: Final answer
    x = 32,698.29

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.