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Finding the Third Proportional to 66,549.75 and 100,518

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Solution

The third proportional to 66,549.75 and 100,518 is: 151,824.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,549.75 : 100,518 = 100,518 : x
  2. Step 2: Convert to fraction form
    66,549.75/100,518 = 100,518/x
  3. Step 3: Cross multiply
    66,549.75x = 100,518 × 100,518
  4. Step 4: Simplify right side
    66,549.75x = 10,103,868,324
  5. Step 5: Solve for x
    x = 10,103,868,324/66,549.75
  6. Step 6: Final answer
    x = 151,824.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.