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Finding the Third Proportional to 44,520 and 69,240

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Solution

The third proportional to 44,520 and 69,240 is: 107,685.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,520 : 69,240 = 69,240 : x
  2. Step 2: Convert to fraction form
    44,520/69,240 = 69,240/x
  3. Step 3: Cross multiply
    44,520x = 69,240 × 69,240
  4. Step 4: Simplify right side
    44,520x = 4,794,177,600
  5. Step 5: Solve for x
    x = 4,794,177,600/44,520
  6. Step 6: Final answer
    x = 107,685.93

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.