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Finding the Third Proportional to 15,640 and 33,332

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Solution

The third proportional to 15,640 and 33,332 is: 71,037.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640 : 33,332 = 33,332 : x
  2. Step 2: Convert to fraction form
    15,640/33,332 = 33,332/x
  3. Step 3: Cross multiply
    15,640x = 33,332 × 33,332
  4. Step 4: Simplify right side
    15,640x = 1,111,022,224
  5. Step 5: Solve for x
    x = 1,111,022,224/15,640
  6. Step 6: Final answer
    x = 71,037.23

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.