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Finding the Fourth Proportional to 4,748.78, 7,123.20 and 1,461.93

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Solution

The fourth proportional to 4,748.78, 7,123.20 and 1,461.93 is: 2,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.78 : 7,123.20 = 1,461.93 : x
  2. Step 2: Convert to fraction form
    4,748.78/7,123.20 = 1,461.93/x
  3. Step 3: Cross multiply
    4,748.78x = 7,123.20 × 1,461.93
  4. Step 4: Simplify right side
    4,748.78x = 10,413,619.78
  5. Step 5: Solve for x
    x = 10,413,619.78/4,748.78
  6. Step 6: Final answer
    x = 2,192.90

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