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Finding the Fourth Proportional to 5,657.80, 8,486.70 and 4,199.80

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Solution

The fourth proportional to 5,657.80, 8,486.70 and 4,199.80 is: 6,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,657.80 : 8,486.70 = 4,199.80 : x
  2. Step 2: Convert to fraction form
    5,657.80/8,486.70 = 4,199.80/x
  3. Step 3: Cross multiply
    5,657.80x = 8,486.70 × 4,199.80
  4. Step 4: Simplify right side
    5,657.80x = 35,642,442.66
  5. Step 5: Solve for x
    x = 35,642,442.66/5,657.80
  6. Step 6: Final answer
    x = 6,299.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.