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Finding the Third Proportional to 985.25 and 2,132.25

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Solution

The third proportional to 985.25 and 2,132.25 is: 4,614.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    985.25 : 2,132.25 = 2,132.25 : x
  2. Step 2: Convert to fraction form
    985.25/2,132.25 = 2,132.25/x
  3. Step 3: Cross multiply
    985.25x = 2,132.25 × 2,132.25
  4. Step 4: Simplify right side
    985.25x = 4,546,490.06
  5. Step 5: Solve for x
    x = 4,546,490.06/985.25
  6. Step 6: Final answer
    x = 4,614.55

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.