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Finding the Fourth Proportional to 10,487.25, 15,718.05 and 4,933.22

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Solution

The fourth proportional to 10,487.25, 15,718.05 and 4,933.22 is: 7,393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.25 : 15,718.05 = 4,933.22 : x
  2. Step 2: Convert to fraction form
    10,487.25/15,718.05 = 4,933.22/x
  3. Step 3: Cross multiply
    10,487.25x = 15,718.05 × 4,933.22
  4. Step 4: Simplify right side
    10,487.25x = 77,540,520.03
  5. Step 5: Solve for x
    x = 77,540,520.03/10,487.25
  6. Step 6: Final answer
    x = 7,393.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.