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Finding the Fourth Proportional to 6,463.80, 8,910.81 and 4,335.53

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Solution

The fourth proportional to 6,463.80, 8,910.81 and 4,335.53 is: 5,976.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463.80 : 8,910.81 = 4,335.53 : x
  2. Step 2: Convert to fraction form
    6,463.80/8,910.81 = 4,335.53/x
  3. Step 3: Cross multiply
    6,463.80x = 8,910.81 × 4,335.53
  4. Step 4: Simplify right side
    6,463.80x = 38,633,039.53
  5. Step 5: Solve for x
    x = 38,633,039.53/6,463.80
  6. Step 6: Final answer
    x = 5,976.83

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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.