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Finding the Fourth Proportional to 2,186.52, 3,280.32 and 1,032

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Solution

The fourth proportional to 2,186.52, 3,280.32 and 1,032 is: 1,548.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.52 : 3,280.32 = 1,032 : x
  2. Step 2: Convert to fraction form
    2,186.52/3,280.32 = 1,032/x
  3. Step 3: Cross multiply
    2,186.52x = 3,280.32 × 1,032
  4. Step 4: Simplify right side
    2,186.52x = 3,385,290.24
  5. Step 5: Solve for x
    x = 3,385,290.24/2,186.52
  6. Step 6: Final answer
    x = 1,548.25

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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.