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Finding the Third Proportional to 25,728 and 38,484

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Solution

The third proportional to 25,728 and 38,484 is: 57,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728 : 38,484 = 38,484 : x
  2. Step 2: Convert to fraction form
    25,728/38,484 = 38,484/x
  3. Step 3: Cross multiply
    25,728x = 38,484 × 38,484
  4. Step 4: Simplify right side
    25,728x = 1,481,018,256
  5. Step 5: Solve for x
    x = 1,481,018,256/25,728
  6. Step 6: Final answer
    x = 57,564.45

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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.