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Finding the Third Proportional to 20,929.50 and 29,832

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Solution

The third proportional to 20,929.50 and 29,832 is: 42,521.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.50 : 29,832 = 29,832 : x
  2. Step 2: Convert to fraction form
    20,929.50/29,832 = 29,832/x
  3. Step 3: Cross multiply
    20,929.50x = 29,832 × 29,832
  4. Step 4: Simplify right side
    20,929.50x = 889,948,224
  5. Step 5: Solve for x
    x = 889,948,224/20,929.50
  6. Step 6: Final answer
    x = 42,521.24

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.