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Finding the Third Proportional to 13,122 and 14,454

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Solution

The third proportional to 13,122 and 14,454 is: 15,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122 : 14,454 = 14,454 : x
  2. Step 2: Convert to fraction form
    13,122/14,454 = 14,454/x
  3. Step 3: Cross multiply
    13,122x = 14,454 × 14,454
  4. Step 4: Simplify right side
    13,122x = 208,918,116
  5. Step 5: Solve for x
    x = 208,918,116/13,122
  6. Step 6: Final answer
    x = 15,921.21

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.