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Finding the Third Proportional to 3,151.50 and 4,728

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Solution

The third proportional to 3,151.50 and 4,728 is: 7,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.50 : 4,728 = 4,728 : x
  2. Step 2: Convert to fraction form
    3,151.50/4,728 = 4,728/x
  3. Step 3: Cross multiply
    3,151.50x = 4,728 × 4,728
  4. Step 4: Simplify right side
    3,151.50x = 22,353,984
  5. Step 5: Solve for x
    x = 22,353,984/3,151.50
  6. Step 6: Final answer
    x = 7,093.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.