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Finding the Third Proportional to 551.25 and 1,188.94

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Solution

The third proportional to 551.25 and 1,188.94 is: 2,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.25 : 1,188.94 = 1,188.94 : x
  2. Step 2: Convert to fraction form
    551.25/1,188.94 = 1,188.94/x
  3. Step 3: Cross multiply
    551.25x = 1,188.94 × 1,188.94
  4. Step 4: Simplify right side
    551.25x = 1,413,572.38
  5. Step 5: Solve for x
    x = 1,413,572.38/551.25
  6. Step 6: Final answer
    x = 2,564.30

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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.