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Finding the Fourth Proportional to 18,806.96, 28,203.14 and 10,037.09

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Solution

The fourth proportional to 18,806.96, 28,203.14 and 10,037.09 is: 15,051.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.96 : 28,203.14 = 10,037.09 : x
  2. Step 2: Convert to fraction form
    18,806.96/28,203.14 = 10,037.09/x
  3. Step 3: Cross multiply
    18,806.96x = 28,203.14 × 10,037.09
  4. Step 4: Simplify right side
    18,806.96x = 283,077,338.54
  5. Step 5: Solve for x
    x = 283,077,338.54/18,806.96
  6. Step 6: Final answer
    x = 15,051.74

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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.