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Finding the Fourth Proportional to 3,164.58, 4,747.47 and 1,314.69

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Solution

The fourth proportional to 3,164.58, 4,747.47 and 1,314.69 is: 1,972.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164.58 : 4,747.47 = 1,314.69 : x
  2. Step 2: Convert to fraction form
    3,164.58/4,747.47 = 1,314.69/x
  3. Step 3: Cross multiply
    3,164.58x = 4,747.47 × 1,314.69
  4. Step 4: Simplify right side
    3,164.58x = 6,241,451.33
  5. Step 5: Solve for x
    x = 6,241,451.33/3,164.58
  6. Step 6: Final answer
    x = 1,972.28

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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.