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Finding the Third Proportional to 5,312 and 7,795

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Solution

The third proportional to 5,312 and 7,795 is: 11,438.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312 : 7,795 = 7,795 : x
  2. Step 2: Convert to fraction form
    5,312/7,795 = 7,795/x
  3. Step 3: Cross multiply
    5,312x = 7,795 × 7,795
  4. Step 4: Simplify right side
    5,312x = 60,762,025
  5. Step 5: Solve for x
    x = 60,762,025/5,312
  6. Step 6: Final answer
    x = 11,438.63

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.