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Finding the Fourth Proportional to 7,480.76, 11,221.11 and 1,933.63

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Solution

The fourth proportional to 7,480.76, 11,221.11 and 1,933.63 is: 2,900.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.76 : 11,221.11 = 1,933.63 : x
  2. Step 2: Convert to fraction form
    7,480.76/11,221.11 = 1,933.63/x
  3. Step 3: Cross multiply
    7,480.76x = 11,221.11 × 1,933.63
  4. Step 4: Simplify right side
    7,480.76x = 21,697,493.31
  5. Step 5: Solve for x
    x = 21,697,493.31/7,480.76
  6. Step 6: Final answer
    x = 2,900.44

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Double scale
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Similar ratio
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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.