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Finding the Third Proportional to 985 and 2,320

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Solution

The third proportional to 985 and 2,320 is: 5,464.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    985 : 2,320 = 2,320 : x
  2. Step 2: Convert to fraction form
    985/2,320 = 2,320/x
  3. Step 3: Cross multiply
    985x = 2,320 × 2,320
  4. Step 4: Simplify right side
    985x = 5,382,400
  5. Step 5: Solve for x
    x = 5,382,400/985
  6. Step 6: Final answer
    x = 5,464.37

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.