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Finding the Third Proportional to 5,764 and 8,912

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Solution

The third proportional to 5,764 and 8,912 is: 13,779.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,764 : 8,912 = 8,912 : x
  2. Step 2: Convert to fraction form
    5,764/8,912 = 8,912/x
  3. Step 3: Cross multiply
    5,764x = 8,912 × 8,912
  4. Step 4: Simplify right side
    5,764x = 79,423,744
  5. Step 5: Solve for x
    x = 79,423,744/5,764
  6. Step 6: Final answer
    x = 13,779.28

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.