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Finding the Third Proportional to 1,590 and 3,292

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Solution

The third proportional to 1,590 and 3,292 is: 6,815.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590 : 3,292 = 3,292 : x
  2. Step 2: Convert to fraction form
    1,590/3,292 = 3,292/x
  3. Step 3: Cross multiply
    1,590x = 3,292 × 3,292
  4. Step 4: Simplify right side
    1,590x = 10,837,264
  5. Step 5: Solve for x
    x = 10,837,264/1,590
  6. Step 6: Final answer
    x = 6,815.89

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.