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Finding the Fourth Proportional to 7,322.90, 10,105.50 and 4,179.14

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Solution

The fourth proportional to 7,322.90, 10,105.50 and 4,179.14 is: 5,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.90 : 10,105.50 = 4,179.14 : x
  2. Step 2: Convert to fraction form
    7,322.90/10,105.50 = 4,179.14/x
  3. Step 3: Cross multiply
    7,322.90x = 10,105.50 × 4,179.14
  4. Step 4: Simplify right side
    7,322.90x = 42,232,299.27
  5. Step 5: Solve for x
    x = 42,232,299.27/7,322.90
  6. Step 6: Final answer
    x = 5,767.15

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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.