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Finding the Fourth Proportional to 2,697.56, 3,722.62 and 1,518.64

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Solution

The fourth proportional to 2,697.56, 3,722.62 and 1,518.64 is: 2,095.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.56 : 3,722.62 = 1,518.64 : x
  2. Step 2: Convert to fraction form
    2,697.56/3,722.62 = 1,518.64/x
  3. Step 3: Cross multiply
    2,697.56x = 3,722.62 × 1,518.64
  4. Step 4: Simplify right side
    2,697.56x = 5,653,319.64
  5. Step 5: Solve for x
    x = 5,653,319.64/2,697.56
  6. Step 6: Final answer
    x = 2,095.72

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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.