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Finding the Fourth Proportional to 3,939.51, 5,436.54 and 2,367.63

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Solution

The fourth proportional to 3,939.51, 5,436.54 and 2,367.63 is: 3,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.51 : 5,436.54 = 2,367.63 : x
  2. Step 2: Convert to fraction form
    3,939.51/5,436.54 = 2,367.63/x
  3. Step 3: Cross multiply
    3,939.51x = 5,436.54 × 2,367.63
  4. Step 4: Simplify right side
    3,939.51x = 12,871,715.20
  5. Step 5: Solve for x
    x = 12,871,715.20/3,939.51
  6. Step 6: Final answer
    x = 3,267.34

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