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Finding the Third Proportional to 51,420 and 112,677

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Solution

The third proportional to 51,420 and 112,677 is: 246,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,420 : 112,677 = 112,677 : x
  2. Step 2: Convert to fraction form
    51,420/112,677 = 112,677/x
  3. Step 3: Cross multiply
    51,420x = 112,677 × 112,677
  4. Step 4: Simplify right side
    51,420x = 12,696,106,329
  5. Step 5: Solve for x
    x = 12,696,106,329/51,420
  6. Step 6: Final answer
    x = 246,909.89

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.