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Finding the Third Proportional to 66,549 and 100,516.50

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Solution

The third proportional to 66,549 and 100,516.50 is: 151,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,549 : 100,516.50 = 100,516.50 : x
  2. Step 2: Convert to fraction form
    66,549/100,516.50 = 100,516.50/x
  3. Step 3: Cross multiply
    66,549x = 100,516.50 × 100,516.50
  4. Step 4: Simplify right side
    66,549x = 10,103,566,772.25
  5. Step 5: Solve for x
    x = 10,103,566,772.25/66,549
  6. Step 6: Final answer
    x = 151,821.47

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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.