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Finding the Fourth Proportional to 25,425.74, 38,139.18 and 17,898.54

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Solution

The fourth proportional to 25,425.74, 38,139.18 and 17,898.54 is: 26,848.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,425.74 : 38,139.18 = 17,898.54 : x
  2. Step 2: Convert to fraction form
    25,425.74/38,139.18 = 17,898.54/x
  3. Step 3: Cross multiply
    25,425.74x = 38,139.18 × 17,898.54
  4. Step 4: Simplify right side
    25,425.74x = 682,635,638.80
  5. Step 5: Solve for x
    x = 682,635,638.80/25,425.74
  6. Step 6: Final answer
    x = 26,848.21

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