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Finding the Fourth Proportional to 7,468.87, 11,204.52 and 2,790.51

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Solution

The fourth proportional to 7,468.87, 11,204.52 and 2,790.51 is: 4,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,468.87 : 11,204.52 = 2,790.51 : x
  2. Step 2: Convert to fraction form
    7,468.87/11,204.52 = 2,790.51/x
  3. Step 3: Cross multiply
    7,468.87x = 11,204.52 × 2,790.51
  4. Step 4: Simplify right side
    7,468.87x = 31,266,325.11
  5. Step 5: Solve for x
    x = 31,266,325.11/7,468.87
  6. Step 6: Final answer
    x = 4,186.22

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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.