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Finding the Third Proportional to 1,590 and 3,324

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Solution

The third proportional to 1,590 and 3,324 is: 6,949.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590 : 3,324 = 3,324 : x
  2. Step 2: Convert to fraction form
    1,590/3,324 = 3,324/x
  3. Step 3: Cross multiply
    1,590x = 3,324 × 3,324
  4. Step 4: Simplify right side
    1,590x = 11,048,976
  5. Step 5: Solve for x
    x = 11,048,976/1,590
  6. Step 6: Final answer
    x = 6,949.04

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.