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Finding the Third Proportional to 1,704 and 3,151.50

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Solution

The third proportional to 1,704 and 3,151.50 is: 5,828.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704 : 3,151.50 = 3,151.50 : x
  2. Step 2: Convert to fraction form
    1,704/3,151.50 = 3,151.50/x
  3. Step 3: Cross multiply
    1,704x = 3,151.50 × 3,151.50
  4. Step 4: Simplify right side
    1,704x = 9,931,952.25
  5. Step 5: Solve for x
    x = 9,931,952.25/1,704
  6. Step 6: Final answer
    x = 5,828.61

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.