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Finding the Third Proportional to 69,312 and 104,472

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Solution

The third proportional to 69,312 and 104,472 is: 157,467.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,312 : 104,472 = 104,472 : x
  2. Step 2: Convert to fraction form
    69,312/104,472 = 104,472/x
  3. Step 3: Cross multiply
    69,312x = 104,472 × 104,472
  4. Step 4: Simplify right side
    69,312x = 10,914,398,784
  5. Step 5: Solve for x
    x = 10,914,398,784/69,312
  6. Step 6: Final answer
    x = 157,467.66

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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.