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Finding the Fourth Proportional to 56,613.30, 84,865.95 and 21,065.10

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Solution

The fourth proportional to 56,613.30, 84,865.95 and 21,065.10 is: 31,577.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,613.30 : 84,865.95 = 21,065.10 : x
  2. Step 2: Convert to fraction form
    56,613.30/84,865.95 = 21,065.10/x
  3. Step 3: Cross multiply
    56,613.30x = 84,865.95 × 21,065.10
  4. Step 4: Simplify right side
    56,613.30x = 1,787,709,723.35
  5. Step 5: Solve for x
    x = 1,787,709,723.35/56,613.30
  6. Step 6: Final answer
    x = 31,577.56

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