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Finding the Third Proportional to 42,967 and 66,394.50

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Solution

The third proportional to 42,967 and 66,394.50 is: 102,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,967 : 66,394.50 = 66,394.50 : x
  2. Step 2: Convert to fraction form
    42,967/66,394.50 = 66,394.50/x
  3. Step 3: Cross multiply
    42,967x = 66,394.50 × 66,394.50
  4. Step 4: Simplify right side
    42,967x = 4,408,229,630.25
  5. Step 5: Solve for x
    x = 4,408,229,630.25/42,967
  6. Step 6: Final answer
    x = 102,595.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.