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Finding the Fourth Proportional to 2,636.66, 3,948.19 and 2,558.82

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Solution

The fourth proportional to 2,636.66, 3,948.19 and 2,558.82 is: 3,831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.66 : 3,948.19 = 2,558.82 : x
  2. Step 2: Convert to fraction form
    2,636.66/3,948.19 = 2,558.82/x
  3. Step 3: Cross multiply
    2,636.66x = 3,948.19 × 2,558.82
  4. Step 4: Simplify right side
    2,636.66x = 10,102,707.54
  5. Step 5: Solve for x
    x = 10,102,707.54/2,636.66
  6. Step 6: Final answer
    x = 3,831.63

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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.