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Finding the Third Proportional to 4,906 and 7,407

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Solution

The third proportional to 4,906 and 7,407 is: 11,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,906 : 7,407 = 7,407 : x
  2. Step 2: Convert to fraction form
    4,906/7,407 = 7,407/x
  3. Step 3: Cross multiply
    4,906x = 7,407 × 7,407
  4. Step 4: Simplify right side
    4,906x = 54,863,649
  5. Step 5: Solve for x
    x = 54,863,649/4,906
  6. Step 6: Final answer
    x = 11,182.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.