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Finding the Fourth Proportional to 5,675.52, 8,511.66 and 2,388

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Solution

The fourth proportional to 5,675.52, 8,511.66 and 2,388 is: 3,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.52 : 8,511.66 = 2,388 : x
  2. Step 2: Convert to fraction form
    5,675.52/8,511.66 = 2,388/x
  3. Step 3: Cross multiply
    5,675.52x = 8,511.66 × 2,388
  4. Step 4: Simplify right side
    5,675.52x = 20,325,844.08
  5. Step 5: Solve for x
    x = 20,325,844.08/5,675.52
  6. Step 6: Final answer
    x = 3,581.32

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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.