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Finding the Third Proportional to 31,976 and 70,297

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Solution

The third proportional to 31,976 and 70,297 is: 154,543.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,976 : 70,297 = 70,297 : x
  2. Step 2: Convert to fraction form
    31,976/70,297 = 70,297/x
  3. Step 3: Cross multiply
    31,976x = 70,297 × 70,297
  4. Step 4: Simplify right side
    31,976x = 4,941,668,209
  5. Step 5: Solve for x
    x = 4,941,668,209/31,976
  6. Step 6: Final answer
    x = 154,543.04

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.