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Finding the Fourth Proportional to 48,646.40, 72,969.80 and 13,586.36

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Solution

The fourth proportional to 48,646.40, 72,969.80 and 13,586.36 is: 20,379.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,646.40 : 72,969.80 = 13,586.36 : x
  2. Step 2: Convert to fraction form
    48,646.40/72,969.80 = 13,586.36/x
  3. Step 3: Cross multiply
    48,646.40x = 72,969.80 × 13,586.36
  4. Step 4: Simplify right side
    48,646.40x = 991,393,539.15
  5. Step 5: Solve for x
    x = 991,393,539.15/48,646.40
  6. Step 6: Final answer
    x = 20,379.59

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