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Finding the Fourth Proportional to 5,859.80, 8,781.94 and 3,663.32

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Solution

The fourth proportional to 5,859.80, 8,781.94 and 3,663.32 is: 5,490.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859.80 : 8,781.94 = 3,663.32 : x
  2. Step 2: Convert to fraction form
    5,859.80/8,781.94 = 3,663.32/x
  3. Step 3: Cross multiply
    5,859.80x = 8,781.94 × 3,663.32
  4. Step 4: Simplify right side
    5,859.80x = 32,171,056.44
  5. Step 5: Solve for x
    x = 32,171,056.44/5,859.80
  6. Step 6: Final answer
    x = 5,490.13

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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.