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Finding the Fourth Proportional to 3,550.68, 4,888.68 and 3,018.48

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Solution

The fourth proportional to 3,550.68, 4,888.68 and 3,018.48 is: 4,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.68 : 4,888.68 = 3,018.48 : x
  2. Step 2: Convert to fraction form
    3,550.68/4,888.68 = 3,018.48/x
  3. Step 3: Cross multiply
    3,550.68x = 4,888.68 × 3,018.48
  4. Step 4: Simplify right side
    3,550.68x = 14,756,382.81
  5. Step 5: Solve for x
    x = 14,756,382.81/3,550.68
  6. Step 6: Final answer
    x = 4,155.93

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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.