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Finding the Fourth Proportional to 4,707.36, 7,061.28 and 1,784.64

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Solution

The fourth proportional to 4,707.36, 7,061.28 and 1,784.64 is: 2,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.36 : 7,061.28 = 1,784.64 : x
  2. Step 2: Convert to fraction form
    4,707.36/7,061.28 = 1,784.64/x
  3. Step 3: Cross multiply
    4,707.36x = 7,061.28 × 1,784.64
  4. Step 4: Simplify right side
    4,707.36x = 12,601,842.74
  5. Step 5: Solve for x
    x = 12,601,842.74/4,707.36
  6. Step 6: Final answer
    x = 2,677.05

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