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Finding the Third Proportional to 6,020 and 7,915

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Solution

The third proportional to 6,020 and 7,915 is: 10,406.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,020 : 7,915 = 7,915 : x
  2. Step 2: Convert to fraction form
    6,020/7,915 = 7,915/x
  3. Step 3: Cross multiply
    6,020x = 7,915 × 7,915
  4. Step 4: Simplify right side
    6,020x = 62,647,225
  5. Step 5: Solve for x
    x = 62,647,225/6,020
  6. Step 6: Final answer
    x = 10,406.52

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.