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Finding the Fourth Proportional to 5,657.94, 7,808.05 and 3,140.22

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Solution

The fourth proportional to 5,657.94, 7,808.05 and 3,140.22 is: 4,333.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,657.94 : 7,808.05 = 3,140.22 : x
  2. Step 2: Convert to fraction form
    5,657.94/7,808.05 = 3,140.22/x
  3. Step 3: Cross multiply
    5,657.94x = 7,808.05 × 3,140.22
  4. Step 4: Simplify right side
    5,657.94x = 24,518,940.03
  5. Step 5: Solve for x
    x = 24,518,940.03/5,657.94
  6. Step 6: Final answer
    x = 4,333.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.