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Finding the Third Proportional to 43,284.50 and 66,442

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Solution

The third proportional to 43,284.50 and 66,442 is: 101,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,284.50 : 66,442 = 66,442 : x
  2. Step 2: Convert to fraction form
    43,284.50/66,442 = 66,442/x
  3. Step 3: Cross multiply
    43,284.50x = 66,442 × 66,442
  4. Step 4: Simplify right side
    43,284.50x = 4,414,539,364
  5. Step 5: Solve for x
    x = 4,414,539,364/43,284.50
  6. Step 6: Final answer
    x = 101,988.92

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.