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Finding the Fourth Proportional to 4,922.40, 7,384.20 and 1,801.92

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Solution

The fourth proportional to 4,922.40, 7,384.20 and 1,801.92 is: 2,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,922.40 : 7,384.20 = 1,801.92 : x
  2. Step 2: Convert to fraction form
    4,922.40/7,384.20 = 1,801.92/x
  3. Step 3: Cross multiply
    4,922.40x = 7,384.20 × 1,801.92
  4. Step 4: Simplify right side
    4,922.40x = 13,305,737.66
  5. Step 5: Solve for x
    x = 13,305,737.66/4,922.40
  6. Step 6: Final answer
    x = 2,703.10

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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.