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Finding the Third Proportional to 15,120 and 23,073

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Solution

The third proportional to 15,120 and 23,073 is: 35,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120 : 23,073 = 23,073 : x
  2. Step 2: Convert to fraction form
    15,120/23,073 = 23,073/x
  3. Step 3: Cross multiply
    15,120x = 23,073 × 23,073
  4. Step 4: Simplify right side
    15,120x = 532,363,329
  5. Step 5: Solve for x
    x = 532,363,329/15,120
  6. Step 6: Final answer
    x = 35,209.21

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.