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Finding the Fourth Proportional to 3,976.04, 5,484.48 and 3,306.98

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Solution

The fourth proportional to 3,976.04, 5,484.48 and 3,306.98 is: 4,561.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.04 : 5,484.48 = 3,306.98 : x
  2. Step 2: Convert to fraction form
    3,976.04/5,484.48 = 3,306.98/x
  3. Step 3: Cross multiply
    3,976.04x = 5,484.48 × 3,306.98
  4. Step 4: Simplify right side
    3,976.04x = 18,137,065.67
  5. Step 5: Solve for x
    x = 18,137,065.67/3,976.04
  6. Step 6: Final answer
    x = 4,561.59

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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.