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Finding the Fourth Proportional to 18,995.52, 26,212.05 and 11,037.63

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Solution

The fourth proportional to 18,995.52, 26,212.05 and 11,037.63 is: 15,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,995.52 : 26,212.05 = 11,037.63 : x
  2. Step 2: Convert to fraction form
    18,995.52/26,212.05 = 11,037.63/x
  3. Step 3: Cross multiply
    18,995.52x = 26,212.05 × 11,037.63
  4. Step 4: Simplify right side
    18,995.52x = 289,318,909.44
  5. Step 5: Solve for x
    x = 289,318,909.44/18,995.52
  6. Step 6: Final answer
    x = 15,230.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.