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Finding the Fourth Proportional to 19,715.41, 27,203.20 and 11,330.29

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Solution

The fourth proportional to 19,715.41, 27,203.20 and 11,330.29 is: 15,633.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.41 : 27,203.20 = 11,330.29 : x
  2. Step 2: Convert to fraction form
    19,715.41/27,203.20 = 11,330.29/x
  3. Step 3: Cross multiply
    19,715.41x = 27,203.20 × 11,330.29
  4. Step 4: Simplify right side
    19,715.41x = 308,220,144.93
  5. Step 5: Solve for x
    x = 308,220,144.93/19,715.41
  6. Step 6: Final answer
    x = 15,633.46

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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.