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Finding the Fourth Proportional to 2,436.33, 3,655.28 and 876.32

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Solution

The fourth proportional to 2,436.33, 3,655.28 and 876.32 is: 1,314.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.33 : 3,655.28 = 876.32 : x
  2. Step 2: Convert to fraction form
    2,436.33/3,655.28 = 876.32/x
  3. Step 3: Cross multiply
    2,436.33x = 3,655.28 × 876.32
  4. Step 4: Simplify right side
    2,436.33x = 3,203,187.66
  5. Step 5: Solve for x
    x = 3,203,187.66/2,436.33
  6. Step 6: Final answer
    x = 1,314.76

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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.