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Finding the Fourth Proportional to 3,716, 5,574.36 and 1,251.44

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Solution

The fourth proportional to 3,716, 5,574.36 and 1,251.44 is: 1,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716 : 5,574.36 = 1,251.44 : x
  2. Step 2: Convert to fraction form
    3,716/5,574.36 = 1,251.44/x
  3. Step 3: Cross multiply
    3,716x = 5,574.36 × 1,251.44
  4. Step 4: Simplify right side
    3,716x = 6,975,977.08
  5. Step 5: Solve for x
    x = 6,975,977.08/3,716
  6. Step 6: Final answer
    x = 1,877.28

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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.