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Finding the Third Proportional to 15,315 and 33,141

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Solution

The third proportional to 15,315 and 33,141 is: 71,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315 : 33,141 = 33,141 : x
  2. Step 2: Convert to fraction form
    15,315/33,141 = 33,141/x
  3. Step 3: Cross multiply
    15,315x = 33,141 × 33,141
  4. Step 4: Simplify right side
    15,315x = 1,098,325,881
  5. Step 5: Solve for x
    x = 1,098,325,881/15,315
  6. Step 6: Final answer
    x = 71,715.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.