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Finding the Fourth Proportional to 19,358.26, 26,716.44 and 11,400.32

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Solution

The fourth proportional to 19,358.26, 26,716.44 and 11,400.32 is: 15,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.26 : 26,716.44 = 11,400.32 : x
  2. Step 2: Convert to fraction form
    19,358.26/26,716.44 = 11,400.32/x
  3. Step 3: Cross multiply
    19,358.26x = 26,716.44 × 11,400.32
  4. Step 4: Simplify right side
    19,358.26x = 304,575,965.26
  5. Step 5: Solve for x
    x = 304,575,965.26/19,358.26
  6. Step 6: Final answer
    x = 15,733.64

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