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Finding the Third Proportional to 14,221.13 and 20,966.63

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Solution

The third proportional to 14,221.13 and 20,966.63 is: 30,911.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.13 : 20,966.63 = 20,966.63 : x
  2. Step 2: Convert to fraction form
    14,221.13/20,966.63 = 20,966.63/x
  3. Step 3: Cross multiply
    14,221.13x = 20,966.63 × 20,966.63
  4. Step 4: Simplify right side
    14,221.13x = 439,599,363.89
  5. Step 5: Solve for x
    x = 439,599,363.89/14,221.13
  6. Step 6: Final answer
    x = 30,911.72

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.