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Finding the Third Proportional to 15,331 and 33,470

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Solution

The third proportional to 15,331 and 33,470 is: 73,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,331 : 33,470 = 33,470 : x
  2. Step 2: Convert to fraction form
    15,331/33,470 = 33,470/x
  3. Step 3: Cross multiply
    15,331x = 33,470 × 33,470
  4. Step 4: Simplify right side
    15,331x = 1,120,240,900
  5. Step 5: Solve for x
    x = 1,120,240,900/15,331
  6. Step 6: Final answer
    x = 73,070.31

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.