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Finding the Fourth Proportional to 19,216.48, 26,517.81 and 10,719.49

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Solution

The fourth proportional to 19,216.48, 26,517.81 and 10,719.49 is: 14,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,216.48 : 26,517.81 = 10,719.49 : x
  2. Step 2: Convert to fraction form
    19,216.48/26,517.81 = 10,719.49/x
  3. Step 3: Cross multiply
    19,216.48x = 26,517.81 × 10,719.49
  4. Step 4: Simplify right side
    19,216.48x = 284,257,399.12
  5. Step 5: Solve for x
    x = 284,257,399.12/19,216.48
  6. Step 6: Final answer
    x = 14,792.38

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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.