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Finding the Third Proportional to 3,768 and 7,152

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Solution

The third proportional to 3,768 and 7,152 is: 13,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768 : 7,152 = 7,152 : x
  2. Step 2: Convert to fraction form
    3,768/7,152 = 7,152/x
  3. Step 3: Cross multiply
    3,768x = 7,152 × 7,152
  4. Step 4: Simplify right side
    3,768x = 51,151,104
  5. Step 5: Solve for x
    x = 51,151,104/3,768
  6. Step 6: Final answer
    x = 13,575.13

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.