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Finding the Fourth Proportional to 19,093.68, 28,628.64 and 7,404.24

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Solution

The fourth proportional to 19,093.68, 28,628.64 and 7,404.24 is: 11,101.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.68 : 28,628.64 = 7,404.24 : x
  2. Step 2: Convert to fraction form
    19,093.68/28,628.64 = 7,404.24/x
  3. Step 3: Cross multiply
    19,093.68x = 28,628.64 × 7,404.24
  4. Step 4: Simplify right side
    19,093.68x = 211,973,321.43
  5. Step 5: Solve for x
    x = 211,973,321.43/19,093.68
  6. Step 6: Final answer
    x = 11,101.75

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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.