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Finding the Fourth Proportional to 19,059.55, 28,600.57 and 7,965.39

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Solution

The fourth proportional to 19,059.55, 28,600.57 and 7,965.39 is: 11,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,059.55 : 28,600.57 = 7,965.39 : x
  2. Step 2: Convert to fraction form
    19,059.55/28,600.57 = 7,965.39/x
  3. Step 3: Cross multiply
    19,059.55x = 28,600.57 × 7,965.39
  4. Step 4: Simplify right side
    19,059.55x = 227,814,628.20
  5. Step 5: Solve for x
    x = 227,814,628.20/19,059.55
  6. Step 6: Final answer
    x = 11,952.78

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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.