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Finding the Third Proportional to 14,020 and 21,132

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Solution

The third proportional to 14,020 and 21,132 is: 31,851.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020 : 21,132 = 21,132 : x
  2. Step 2: Convert to fraction form
    14,020/21,132 = 21,132/x
  3. Step 3: Cross multiply
    14,020x = 21,132 × 21,132
  4. Step 4: Simplify right side
    14,020x = 446,561,424
  5. Step 5: Solve for x
    x = 446,561,424/14,020
  6. Step 6: Final answer
    x = 31,851.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.