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Finding the Fourth Proportional to 19,464.38, 26,860.87 and 11,080.88

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Solution

The fourth proportional to 19,464.38, 26,860.87 and 11,080.88 is: 15,291.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,464.38 : 26,860.87 = 11,080.88 : x
  2. Step 2: Convert to fraction form
    19,464.38/26,860.87 = 11,080.88/x
  3. Step 3: Cross multiply
    19,464.38x = 26,860.87 × 11,080.88
  4. Step 4: Simplify right side
    19,464.38x = 297,642,077.17
  5. Step 5: Solve for x
    x = 297,642,077.17/19,464.38
  6. Step 6: Final answer
    x = 15,291.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.