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Finding the Third Proportional to 868.69 and 1,303.13

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Solution

The third proportional to 868.69 and 1,303.13 is: 1,954.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    868.69 : 1,303.13 = 1,303.13 : x
  2. Step 2: Convert to fraction form
    868.69/1,303.13 = 1,303.13/x
  3. Step 3: Cross multiply
    868.69x = 1,303.13 × 1,303.13
  4. Step 4: Simplify right side
    868.69x = 1,698,134.77
  5. Step 5: Solve for x
    x = 1,698,134.77/868.69
  6. Step 6: Final answer
    x = 1,954.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.