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Finding the Fourth Proportional to 5,737.94, 7,918.73 and 3,220.20

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Solution

The fourth proportional to 5,737.94, 7,918.73 and 3,220.20 is: 4,444.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,737.94 : 7,918.73 = 3,220.20 : x
  2. Step 2: Convert to fraction form
    5,737.94/7,918.73 = 3,220.20/x
  3. Step 3: Cross multiply
    5,737.94x = 7,918.73 × 3,220.20
  4. Step 4: Simplify right side
    5,737.94x = 25,499,894.35
  5. Step 5: Solve for x
    x = 25,499,894.35/5,737.94
  6. Step 6: Final answer
    x = 4,444.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.