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Finding the Third Proportional to 14,045 and 20,415

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Solution

The third proportional to 14,045 and 20,415 is: 29,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045 : 20,415 = 20,415 : x
  2. Step 2: Convert to fraction form
    14,045/20,415 = 20,415/x
  3. Step 3: Cross multiply
    14,045x = 20,415 × 20,415
  4. Step 4: Simplify right side
    14,045x = 416,772,225
  5. Step 5: Solve for x
    x = 416,772,225/14,045
  6. Step 6: Final answer
    x = 29,674.06

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.