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Finding the Fourth Proportional to 17,961,578.82, 26,959,401.54 and 11,117,449.14

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Solution

The fourth proportional to 17,961,578.82, 26,959,401.54 and 11,117,449.14 is: 16,686,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,961,578.82 : 26,959,401.54 = 11,117,449.14 : x
  2. Step 2: Convert to fraction form
    17,961,578.82/26,959,401.54 = 11,117,449.14/x
  3. Step 3: Cross multiply
    17,961,578.82x = 26,959,401.54 × 11,117,449.14
  4. Step 4: Simplify right side
    17,961,578.82x = 299,719,775,465,787.69
  5. Step 5: Solve for x
    x = 299,719,775,465,787.69/17,961,578.82
  6. Step 6: Final answer
    x = 16,686,716.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.