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Finding the Third Proportional to 12,940 and 28,232

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Solution

The third proportional to 12,940 and 28,232 is: 61,595.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940 : 28,232 = 28,232 : x
  2. Step 2: Convert to fraction form
    12,940/28,232 = 28,232/x
  3. Step 3: Cross multiply
    12,940x = 28,232 × 28,232
  4. Step 4: Simplify right side
    12,940x = 797,045,824
  5. Step 5: Solve for x
    x = 797,045,824/12,940
  6. Step 6: Final answer
    x = 61,595.50

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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.