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Finding the Fourth Proportional to 11,473.76, 17,221.44 and 7,099.76

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Solution

The fourth proportional to 11,473.76, 17,221.44 and 7,099.76 is: 10,656.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,473.76 : 17,221.44 = 7,099.76 : x
  2. Step 2: Convert to fraction form
    11,473.76/17,221.44 = 7,099.76/x
  3. Step 3: Cross multiply
    11,473.76x = 17,221.44 × 7,099.76
  4. Step 4: Simplify right side
    11,473.76x = 122,268,090.85
  5. Step 5: Solve for x
    x = 122,268,090.85/11,473.76
  6. Step 6: Final answer
    x = 10,656.32

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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.