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Finding the Third Proportional to 7,900 and 9,052

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Solution

The third proportional to 7,900 and 9,052 is: 10,371.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900 : 9,052 = 9,052 : x
  2. Step 2: Convert to fraction form
    7,900/9,052 = 9,052/x
  3. Step 3: Cross multiply
    7,900x = 9,052 × 9,052
  4. Step 4: Simplify right side
    7,900x = 81,938,704
  5. Step 5: Solve for x
    x = 81,938,704/7,900
  6. Step 6: Final answer
    x = 10,371.99

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.