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Finding the Fourth Proportional to 17,879.76, 26,819.24 and 10,530.83

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Solution

The fourth proportional to 17,879.76, 26,819.24 and 10,530.83 is: 15,796.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.76 : 26,819.24 = 10,530.83 : x
  2. Step 2: Convert to fraction form
    17,879.76/26,819.24 = 10,530.83/x
  3. Step 3: Cross multiply
    17,879.76x = 26,819.24 × 10,530.83
  4. Step 4: Simplify right side
    17,879.76x = 282,428,871.56
  5. Step 5: Solve for x
    x = 282,428,871.56/17,879.76
  6. Step 6: Final answer
    x = 15,796.01

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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.