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Finding the Fourth Proportional to 19,695.72, 27,179.22 and 10,743

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Solution

The fourth proportional to 19,695.72, 27,179.22 and 10,743 is: 14,824.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.72 : 27,179.22 = 10,743 : x
  2. Step 2: Convert to fraction form
    19,695.72/27,179.22 = 10,743/x
  3. Step 3: Cross multiply
    19,695.72x = 27,179.22 × 10,743
  4. Step 4: Simplify right side
    19,695.72x = 291,986,360.46
  5. Step 5: Solve for x
    x = 291,986,360.46/19,695.72
  6. Step 6: Final answer
    x = 14,824.86

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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.