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Finding the Third Proportional to 985.50 and 2,592

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Solution

The third proportional to 985.50 and 2,592 is: 6,817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    985.50 : 2,592 = 2,592 : x
  2. Step 2: Convert to fraction form
    985.50/2,592 = 2,592/x
  3. Step 3: Cross multiply
    985.50x = 2,592 × 2,592
  4. Step 4: Simplify right side
    985.50x = 6,718,464
  5. Step 5: Solve for x
    x = 6,718,464/985.50
  6. Step 6: Final answer
    x = 6,817.32

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.