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Finding the Fourth Proportional to 5,309.88, 7,327.79 and 3,072.45

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Solution

The fourth proportional to 5,309.88, 7,327.79 and 3,072.45 is: 4,240.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.88 : 7,327.79 = 3,072.45 : x
  2. Step 2: Convert to fraction form
    5,309.88/7,327.79 = 3,072.45/x
  3. Step 3: Cross multiply
    5,309.88x = 7,327.79 × 3,072.45
  4. Step 4: Simplify right side
    5,309.88x = 22,514,292.02
  5. Step 5: Solve for x
    x = 22,514,292.02/5,309.88
  6. Step 6: Final answer
    x = 4,240.08

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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.