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Finding the Fourth Proportional to 5,486.58, 8,210.73 and 4,487.85

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Solution

The fourth proportional to 5,486.58, 8,210.73 and 4,487.85 is: 6,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.58 : 8,210.73 = 4,487.85 : x
  2. Step 2: Convert to fraction form
    5,486.58/8,210.73 = 4,487.85/x
  3. Step 3: Cross multiply
    5,486.58x = 8,210.73 × 4,487.85
  4. Step 4: Simplify right side
    5,486.58x = 36,848,524.63
  5. Step 5: Solve for x
    x = 36,848,524.63/5,486.58
  6. Step 6: Final answer
    x = 6,716.12

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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.