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Finding the Third Proportional to 66,988 and 98,622

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Solution

The third proportional to 66,988 and 98,622 is: 145,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988 : 98,622 = 98,622 : x
  2. Step 2: Convert to fraction form
    66,988/98,622 = 98,622/x
  3. Step 3: Cross multiply
    66,988x = 98,622 × 98,622
  4. Step 4: Simplify right side
    66,988x = 9,726,298,884
  5. Step 5: Solve for x
    x = 9,726,298,884/66,988
  6. Step 6: Final answer
    x = 145,194.65

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.