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Finding the Third Proportional to 65,663.50 and 92,216

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Solution

The third proportional to 65,663.50 and 92,216 is: 129,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,663.50 : 92,216 = 92,216 : x
  2. Step 2: Convert to fraction form
    65,663.50/92,216 = 92,216/x
  3. Step 3: Cross multiply
    65,663.50x = 92,216 × 92,216
  4. Step 4: Simplify right side
    65,663.50x = 8,503,790,656
  5. Step 5: Solve for x
    x = 8,503,790,656/65,663.50
  6. Step 6: Final answer
    x = 129,505.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.