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Finding the Third Proportional to 7,752 and 15,126

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Solution

The third proportional to 7,752 and 15,126 is: 29,514.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752 : 15,126 = 15,126 : x
  2. Step 2: Convert to fraction form
    7,752/15,126 = 15,126/x
  3. Step 3: Cross multiply
    7,752x = 15,126 × 15,126
  4. Step 4: Simplify right side
    7,752x = 228,795,876
  5. Step 5: Solve for x
    x = 228,795,876/7,752
  6. Step 6: Final answer
    x = 29,514.43

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.