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Finding the Third Proportional to 7,113 and 9,036

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Solution

The third proportional to 7,113 and 9,036 is: 11,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113 : 9,036 = 9,036 : x
  2. Step 2: Convert to fraction form
    7,113/9,036 = 9,036/x
  3. Step 3: Cross multiply
    7,113x = 9,036 × 9,036
  4. Step 4: Simplify right side
    7,113x = 81,649,296
  5. Step 5: Solve for x
    x = 81,649,296/7,113
  6. Step 6: Final answer
    x = 11,478.88

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.