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Finding the Fourth Proportional to 42,788.48, 64,182.48 and 11,623.72

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Solution

The fourth proportional to 42,788.48, 64,182.48 and 11,623.72 is: 17,435.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,788.48 : 64,182.48 = 11,623.72 : x
  2. Step 2: Convert to fraction form
    42,788.48/64,182.48 = 11,623.72/x
  3. Step 3: Cross multiply
    42,788.48x = 64,182.48 × 11,623.72
  4. Step 4: Simplify right side
    42,788.48x = 746,039,176.43
  5. Step 5: Solve for x
    x = 746,039,176.43/42,788.48
  6. Step 6: Final answer
    x = 17,435.51

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