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Finding the Third Proportional to 3,129 and 4,803

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Solution

The third proportional to 3,129 and 4,803 is: 7,372.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129 : 4,803 = 4,803 : x
  2. Step 2: Convert to fraction form
    3,129/4,803 = 4,803/x
  3. Step 3: Cross multiply
    3,129x = 4,803 × 4,803
  4. Step 4: Simplify right side
    3,129x = 23,068,809
  5. Step 5: Solve for x
    x = 23,068,809/3,129
  6. Step 6: Final answer
    x = 7,372.58

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.