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Finding the Fourth Proportional to 9,161.17, 13,743.88 and 2,920.32

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Solution

The fourth proportional to 9,161.17, 13,743.88 and 2,920.32 is: 4,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.17 : 13,743.88 = 2,920.32 : x
  2. Step 2: Convert to fraction form
    9,161.17/13,743.88 = 2,920.32/x
  3. Step 3: Cross multiply
    9,161.17x = 13,743.88 × 2,920.32
  4. Step 4: Simplify right side
    9,161.17x = 40,136,520.34
  5. Step 5: Solve for x
    x = 40,136,520.34/9,161.17
  6. Step 6: Final answer
    x = 4,381.16

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