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Finding the Fourth Proportional to 3,444.66, 5,168.88 and 1,986.66

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Solution

The fourth proportional to 3,444.66, 5,168.88 and 1,986.66 is: 2,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,444.66 : 5,168.88 = 1,986.66 : x
  2. Step 2: Convert to fraction form
    3,444.66/5,168.88 = 1,986.66/x
  3. Step 3: Cross multiply
    3,444.66x = 5,168.88 × 1,986.66
  4. Step 4: Simplify right side
    3,444.66x = 10,268,807.14
  5. Step 5: Solve for x
    x = 10,268,807.14/3,444.66
  6. Step 6: Final answer
    x = 2,981.08

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Why These Related Problems?

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