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Finding the Fourth Proportional to 3,909.94, 5,864.40 and 1,444.23

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Solution

The fourth proportional to 3,909.94, 5,864.40 and 1,444.23 is: 2,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.94 : 5,864.40 = 1,444.23 : x
  2. Step 2: Convert to fraction form
    3,909.94/5,864.40 = 1,444.23/x
  3. Step 3: Cross multiply
    3,909.94x = 5,864.40 × 1,444.23
  4. Step 4: Simplify right side
    3,909.94x = 8,469,542.41
  5. Step 5: Solve for x
    x = 8,469,542.41/3,909.94
  6. Step 6: Final answer
    x = 2,166.16

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1.5x scale

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.