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Finding the Third Proportional to 7,556.63 and 11,740.38

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Solution

The third proportional to 7,556.63 and 11,740.38 is: 18,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,556.63 : 11,740.38 = 11,740.38 : x
  2. Step 2: Convert to fraction form
    7,556.63/11,740.38 = 11,740.38/x
  3. Step 3: Cross multiply
    7,556.63x = 11,740.38 × 11,740.38
  4. Step 4: Simplify right side
    7,556.63x = 137,836,405.14
  5. Step 5: Solve for x
    x = 137,836,405.14/7,556.63
  6. Step 6: Final answer
    x = 18,240.47

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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.