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Finding the Fourth Proportional to 3,707.92, 5,118.79 and 2,866.72

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Solution

The fourth proportional to 3,707.92, 5,118.79 and 2,866.72 is: 3,957.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.92 : 5,118.79 = 2,866.72 : x
  2. Step 2: Convert to fraction form
    3,707.92/5,118.79 = 2,866.72/x
  3. Step 3: Cross multiply
    3,707.92x = 5,118.79 × 2,866.72
  4. Step 4: Simplify right side
    3,707.92x = 14,674,137.67
  5. Step 5: Solve for x
    x = 14,674,137.67/3,707.92
  6. Step 6: Final answer
    x = 3,957.51

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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.