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Finding the Fourth Proportional to 3,222.99, 4,448.25 and 1,964.25

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Solution

The fourth proportional to 3,222.99, 4,448.25 and 1,964.25 is: 2,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.99 : 4,448.25 = 1,964.25 : x
  2. Step 2: Convert to fraction form
    3,222.99/4,448.25 = 1,964.25/x
  3. Step 3: Cross multiply
    3,222.99x = 4,448.25 × 1,964.25
  4. Step 4: Simplify right side
    3,222.99x = 8,737,475.06
  5. Step 5: Solve for x
    x = 8,737,475.06/3,222.99
  6. Step 6: Final answer
    x = 2,710.98

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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.