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Finding the Third Proportional to 1,916 and 4,650

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Solution

The third proportional to 1,916 and 4,650 is: 11,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916 : 4,650 = 4,650 : x
  2. Step 2: Convert to fraction form
    1,916/4,650 = 4,650/x
  3. Step 3: Cross multiply
    1,916x = 4,650 × 4,650
  4. Step 4: Simplify right side
    1,916x = 21,622,500
  5. Step 5: Solve for x
    x = 21,622,500/1,916
  6. Step 6: Final answer
    x = 11,285.23

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.