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Finding the Third Proportional to 5,084.50 and 7,681

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Solution

The third proportional to 5,084.50 and 7,681 is: 11,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,084.50 : 7,681 = 7,681 : x
  2. Step 2: Convert to fraction form
    5,084.50/7,681 = 7,681/x
  3. Step 3: Cross multiply
    5,084.50x = 7,681 × 7,681
  4. Step 4: Simplify right side
    5,084.50x = 58,997,761
  5. Step 5: Solve for x
    x = 58,997,761/5,084.50
  6. Step 6: Final answer
    x = 11,603.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.