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Finding the Fourth Proportional to 7,860, 10,846.80 and 4,548

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Solution

The fourth proportional to 7,860, 10,846.80 and 4,548 is: 6,276.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860 : 10,846.80 = 4,548 : x
  2. Step 2: Convert to fraction form
    7,860/10,846.80 = 4,548/x
  3. Step 3: Cross multiply
    7,860x = 10,846.80 × 4,548
  4. Step 4: Simplify right side
    7,860x = 49,331,246.40
  5. Step 5: Solve for x
    x = 49,331,246.40/7,860
  6. Step 6: Final answer
    x = 6,276.24

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