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Finding the Fourth Proportional to 25,919.93, 38,886.05 and 8,389.74

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Solution

The fourth proportional to 25,919.93, 38,886.05 and 8,389.74 is: 12,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,919.93 : 38,886.05 = 8,389.74 : x
  2. Step 2: Convert to fraction form
    25,919.93/38,886.05 = 8,389.74/x
  3. Step 3: Cross multiply
    25,919.93x = 38,886.05 × 8,389.74
  4. Step 4: Simplify right side
    25,919.93x = 326,243,807.18
  5. Step 5: Solve for x
    x = 326,243,807.18/25,919.93
  6. Step 6: Final answer
    x = 12,586.60

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