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Finding the Fourth Proportional to 7,418.94, 10,238.13 and 4,061.76

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Solution

The fourth proportional to 7,418.94, 10,238.13 and 4,061.76 is: 5,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.94 : 10,238.13 = 4,061.76 : x
  2. Step 2: Convert to fraction form
    7,418.94/10,238.13 = 4,061.76/x
  3. Step 3: Cross multiply
    7,418.94x = 10,238.13 × 4,061.76
  4. Step 4: Simplify right side
    7,418.94x = 41,584,826.91
  5. Step 5: Solve for x
    x = 41,584,826.91/7,418.94
  6. Step 6: Final answer
    x = 5,605.22

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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.