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Finding the Third Proportional to 15,770 and 33,931

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Solution

The third proportional to 15,770 and 33,931 is: 73,006.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,770 : 33,931 = 33,931 : x
  2. Step 2: Convert to fraction form
    15,770/33,931 = 33,931/x
  3. Step 3: Cross multiply
    15,770x = 33,931 × 33,931
  4. Step 4: Simplify right side
    15,770x = 1,151,312,761
  5. Step 5: Solve for x
    x = 1,151,312,761/15,770
  6. Step 6: Final answer
    x = 73,006.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.