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Finding the Fourth Proportional to 2,530.98, 3,796.47 and 886.64

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Solution

The fourth proportional to 2,530.98, 3,796.47 and 886.64 is: 1,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,530.98 : 3,796.47 = 886.64 : x
  2. Step 2: Convert to fraction form
    2,530.98/3,796.47 = 886.64/x
  3. Step 3: Cross multiply
    2,530.98x = 3,796.47 × 886.64
  4. Step 4: Simplify right side
    2,530.98x = 3,366,083.18
  5. Step 5: Solve for x
    x = 3,366,083.18/2,530.98
  6. Step 6: Final answer
    x = 1,329.95

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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.