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Finding the Third Proportional to 4,945 and 10,862

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Solution

The third proportional to 4,945 and 10,862 is: 23,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945 : 10,862 = 10,862 : x
  2. Step 2: Convert to fraction form
    4,945/10,862 = 10,862/x
  3. Step 3: Cross multiply
    4,945x = 10,862 × 10,862
  4. Step 4: Simplify right side
    4,945x = 117,983,044
  5. Step 5: Solve for x
    x = 117,983,044/4,945
  6. Step 6: Final answer
    x = 23,859.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.