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Finding the Fourth Proportional to 3,158.73, 4,359.14 and 1,742.51

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Solution

The fourth proportional to 3,158.73, 4,359.14 and 1,742.51 is: 2,404.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.73 : 4,359.14 = 1,742.51 : x
  2. Step 2: Convert to fraction form
    3,158.73/4,359.14 = 1,742.51/x
  3. Step 3: Cross multiply
    3,158.73x = 4,359.14 × 1,742.51
  4. Step 4: Simplify right side
    3,158.73x = 7,595,814.53
  5. Step 5: Solve for x
    x = 7,595,814.53/3,158.73
  6. Step 6: Final answer
    x = 2,404.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.