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Finding the Third Proportional to 21,885.19 and 29,251.13

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Solution

The third proportional to 21,885.19 and 29,251.13 is: 39,096.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,885.19 : 29,251.13 = 29,251.13 : x
  2. Step 2: Convert to fraction form
    21,885.19/29,251.13 = 29,251.13/x
  3. Step 3: Cross multiply
    21,885.19x = 29,251.13 × 29,251.13
  4. Step 4: Simplify right side
    21,885.19x = 855,628,313.77
  5. Step 5: Solve for x
    x = 855,628,313.77/21,885.19
  6. Step 6: Final answer
    x = 39,096.23

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.