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Finding the Fourth Proportional to 4,964.16, 7,439.20 and 3,655.36

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Solution

The fourth proportional to 4,964.16, 7,439.20 and 3,655.36 is: 5,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,964.16 : 7,439.20 = 3,655.36 : x
  2. Step 2: Convert to fraction form
    4,964.16/7,439.20 = 3,655.36/x
  3. Step 3: Cross multiply
    4,964.16x = 7,439.20 × 3,655.36
  4. Step 4: Simplify right side
    4,964.16x = 27,192,954.11
  5. Step 5: Solve for x
    x = 27,192,954.11/4,964.16
  6. Step 6: Final answer
    x = 5,477.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.