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Finding the Third Proportional to 16,721.44 and 36,070.31

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Solution

The third proportional to 16,721.44 and 36,070.31 is: 77,808.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,721.44 : 36,070.31 = 36,070.31 : x
  2. Step 2: Convert to fraction form
    16,721.44/36,070.31 = 36,070.31/x
  3. Step 3: Cross multiply
    16,721.44x = 36,070.31 × 36,070.31
  4. Step 4: Simplify right side
    16,721.44x = 1,301,067,443.85
  5. Step 5: Solve for x
    x = 1,301,067,443.85/16,721.44
  6. Step 6: Final answer
    x = 77,808.35

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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.