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Finding the Fourth Proportional to 3,468.51, 5,200.74 and 1,518.57

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Solution

The fourth proportional to 3,468.51, 5,200.74 and 1,518.57 is: 2,276.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.51 : 5,200.74 = 1,518.57 : x
  2. Step 2: Convert to fraction form
    3,468.51/5,200.74 = 1,518.57/x
  3. Step 3: Cross multiply
    3,468.51x = 5,200.74 × 1,518.57
  4. Step 4: Simplify right side
    3,468.51x = 7,897,687.74
  5. Step 5: Solve for x
    x = 7,897,687.74/3,468.51
  6. Step 6: Final answer
    x = 2,276.97

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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.