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Finding the Third Proportional to 69,276 and 104,382

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Solution

The third proportional to 69,276 and 104,382 is: 157,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,276 : 104,382 = 104,382 : x
  2. Step 2: Convert to fraction form
    69,276/104,382 = 104,382/x
  3. Step 3: Cross multiply
    69,276x = 104,382 × 104,382
  4. Step 4: Simplify right side
    69,276x = 10,895,601,924
  5. Step 5: Solve for x
    x = 10,895,601,924/69,276
  6. Step 6: Final answer
    x = 157,278.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.