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Finding the Third Proportional to 13,160 and 20,222

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Solution

The third proportional to 13,160 and 20,222 is: 31,073.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160 : 20,222 = 20,222 : x
  2. Step 2: Convert to fraction form
    13,160/20,222 = 20,222/x
  3. Step 3: Cross multiply
    13,160x = 20,222 × 20,222
  4. Step 4: Simplify right side
    13,160x = 408,929,284
  5. Step 5: Solve for x
    x = 408,929,284/13,160
  6. Step 6: Final answer
    x = 31,073.65

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.