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Finding the Fourth Proportional to 3,518.72, 5,276.80 and 3,357.44

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Solution

The fourth proportional to 3,518.72, 5,276.80 and 3,357.44 is: 5,034.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.72 : 5,276.80 = 3,357.44 : x
  2. Step 2: Convert to fraction form
    3,518.72/5,276.80 = 3,357.44/x
  3. Step 3: Cross multiply
    3,518.72x = 5,276.80 × 3,357.44
  4. Step 4: Simplify right side
    3,518.72x = 17,716,539.39
  5. Step 5: Solve for x
    x = 17,716,539.39/3,518.72
  6. Step 6: Final answer
    x = 5,034.94

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1.5x scale

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.