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Finding the Fourth Proportional to 25,790.78, 38,688.14 and 10,999.82

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Solution

The fourth proportional to 25,790.78, 38,688.14 and 10,999.82 is: 16,500.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,790.78 : 38,688.14 = 10,999.82 : x
  2. Step 2: Convert to fraction form
    25,790.78/38,688.14 = 10,999.82/x
  3. Step 3: Cross multiply
    25,790.78x = 38,688.14 × 10,999.82
  4. Step 4: Simplify right side
    25,790.78x = 425,562,410.19
  5. Step 5: Solve for x
    x = 425,562,410.19/25,790.78
  6. Step 6: Final answer
    x = 16,500.57

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