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Finding the Third Proportional to 5,787 and 8,730

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Solution

The third proportional to 5,787 and 8,730 is: 13,169.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787 : 8,730 = 8,730 : x
  2. Step 2: Convert to fraction form
    5,787/8,730 = 8,730/x
  3. Step 3: Cross multiply
    5,787x = 8,730 × 8,730
  4. Step 4: Simplify right side
    5,787x = 76,212,900
  5. Step 5: Solve for x
    x = 76,212,900/5,787
  6. Step 6: Final answer
    x = 13,169.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.