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Finding the Fourth Proportional to 1,995.52, 2,753.82 and 1,156.38

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Solution

The fourth proportional to 1,995.52, 2,753.82 and 1,156.38 is: 1,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.52 : 2,753.82 = 1,156.38 : x
  2. Step 2: Convert to fraction form
    1,995.52/2,753.82 = 1,156.38/x
  3. Step 3: Cross multiply
    1,995.52x = 2,753.82 × 1,156.38
  4. Step 4: Simplify right side
    1,995.52x = 3,184,464.28
  5. Step 5: Solve for x
    x = 3,184,464.28/1,995.52
  6. Step 6: Final answer
    x = 1,595.81

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Why These Related Problems?

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