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Finding the Fourth Proportional to 5,364, 7,399.80 and 3,792.96

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Solution

The fourth proportional to 5,364, 7,399.80 and 3,792.96 is: 5,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,364 : 7,399.80 = 3,792.96 : x
  2. Step 2: Convert to fraction form
    5,364/7,399.80 = 3,792.96/x
  3. Step 3: Cross multiply
    5,364x = 7,399.80 × 3,792.96
  4. Step 4: Simplify right side
    5,364x = 28,067,145.41
  5. Step 5: Solve for x
    x = 28,067,145.41/5,364
  6. Step 6: Final answer
    x = 5,232.50

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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.