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Finding the Third Proportional to 4,390 and 4,846

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Solution

The third proportional to 4,390 and 4,846 is: 5,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390 : 4,846 = 4,846 : x
  2. Step 2: Convert to fraction form
    4,390/4,846 = 4,846/x
  3. Step 3: Cross multiply
    4,390x = 4,846 × 4,846
  4. Step 4: Simplify right side
    4,390x = 23,483,716
  5. Step 5: Solve for x
    x = 23,483,716/4,390
  6. Step 6: Final answer
    x = 5,349.37

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.