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Finding the Fourth Proportional to 4,723.74, 7,086.02 and 1,436.87

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Solution

The fourth proportional to 4,723.74, 7,086.02 and 1,436.87 is: 2,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,723.74 : 7,086.02 = 1,436.87 : x
  2. Step 2: Convert to fraction form
    4,723.74/7,086.02 = 1,436.87/x
  3. Step 3: Cross multiply
    4,723.74x = 7,086.02 × 1,436.87
  4. Step 4: Simplify right side
    4,723.74x = 10,181,646.94
  5. Step 5: Solve for x
    x = 10,181,646.94/4,723.74
  6. Step 6: Final answer
    x = 2,155.42

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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.