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Finding the Third Proportional to 13,948 and 20,953

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Solution

The third proportional to 13,948 and 20,953 is: 31,476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948 : 20,953 = 20,953 : x
  2. Step 2: Convert to fraction form
    13,948/20,953 = 20,953/x
  3. Step 3: Cross multiply
    13,948x = 20,953 × 20,953
  4. Step 4: Simplify right side
    13,948x = 439,028,209
  5. Step 5: Solve for x
    x = 439,028,209/13,948
  6. Step 6: Final answer
    x = 31,476.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.