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Finding the Fourth Proportional to 7,248.68, 9,998.52 and 4,978.92

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Solution

The fourth proportional to 7,248.68, 9,998.52 and 4,978.92 is: 6,867.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.68 : 9,998.52 = 4,978.92 : x
  2. Step 2: Convert to fraction form
    7,248.68/9,998.52 = 4,978.92/x
  3. Step 3: Cross multiply
    7,248.68x = 9,998.52 × 4,978.92
  4. Step 4: Simplify right side
    7,248.68x = 49,781,831.20
  5. Step 5: Solve for x
    x = 49,781,831.20/7,248.68
  6. Step 6: Final answer
    x = 6,867.71

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