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Finding the Fourth Proportional to 19,358.33, 26,726.14 and 12,655.17

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Solution

The fourth proportional to 19,358.33, 26,726.14 and 12,655.17 is: 17,471.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.33 : 26,726.14 = 12,655.17 : x
  2. Step 2: Convert to fraction form
    19,358.33/26,726.14 = 12,655.17/x
  3. Step 3: Cross multiply
    19,358.33x = 26,726.14 × 12,655.17
  4. Step 4: Simplify right side
    19,358.33x = 338,223,845.14
  5. Step 5: Solve for x
    x = 338,223,845.14/19,358.33
  6. Step 6: Final answer
    x = 17,471.75

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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.