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Finding the Fourth Proportional to 48,215.65, 72,312.12 and 13,146.97

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Solution

The fourth proportional to 48,215.65, 72,312.12 and 13,146.97 is: 19,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,215.65 : 72,312.12 = 13,146.97 : x
  2. Step 2: Convert to fraction form
    48,215.65/72,312.12 = 13,146.97/x
  3. Step 3: Cross multiply
    48,215.65x = 72,312.12 × 13,146.97
  4. Step 4: Simplify right side
    48,215.65x = 950,685,272.28
  5. Step 5: Solve for x
    x = 950,685,272.28/48,215.65
  6. Step 6: Final answer
    x = 19,717.36

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