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Finding the Fourth Proportional to 10,001.69, 14,999.70 and 2,981.42

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Solution

The fourth proportional to 10,001.69, 14,999.70 and 2,981.42 is: 4,471.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.69 : 14,999.70 = 2,981.42 : x
  2. Step 2: Convert to fraction form
    10,001.69/14,999.70 = 2,981.42/x
  3. Step 3: Cross multiply
    10,001.69x = 14,999.70 × 2,981.42
  4. Step 4: Simplify right side
    10,001.69x = 44,720,405.57
  5. Step 5: Solve for x
    x = 44,720,405.57/10,001.69
  6. Step 6: Final answer
    x = 4,471.28

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