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Finding the Fourth Proportional to 4,903.92, 7,361.14 and 1,984.14

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Solution

The fourth proportional to 4,903.92, 7,361.14 and 1,984.14 is: 2,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.92 : 7,361.14 = 1,984.14 : x
  2. Step 2: Convert to fraction form
    4,903.92/7,361.14 = 1,984.14/x
  3. Step 3: Cross multiply
    4,903.92x = 7,361.14 × 1,984.14
  4. Step 4: Simplify right side
    4,903.92x = 14,605,532.32
  5. Step 5: Solve for x
    x = 14,605,532.32/4,903.92
  6. Step 6: Final answer
    x = 2,978.34

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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.