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Finding the Third Proportional to 1,585 and 3,403

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Solution

The third proportional to 1,585 and 3,403 is: 7,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585 : 3,403 = 3,403 : x
  2. Step 2: Convert to fraction form
    1,585/3,403 = 3,403/x
  3. Step 3: Cross multiply
    1,585x = 3,403 × 3,403
  4. Step 4: Simplify right side
    1,585x = 11,580,409
  5. Step 5: Solve for x
    x = 11,580,409/1,585
  6. Step 6: Final answer
    x = 7,306.25

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.