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Finding the Third Proportional to 22,000 and 29,890

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Solution

The third proportional to 22,000 and 29,890 is: 40,609.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,000 : 29,890 = 29,890 : x
  2. Step 2: Convert to fraction form
    22,000/29,890 = 29,890/x
  3. Step 3: Cross multiply
    22,000x = 29,890 × 29,890
  4. Step 4: Simplify right side
    22,000x = 893,412,100
  5. Step 5: Solve for x
    x = 893,412,100/22,000
  6. Step 6: Final answer
    x = 40,609.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.