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Finding the Fourth Proportional to 19,481.10, 29,221.65 and 15,101.70

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Solution

The fourth proportional to 19,481.10, 29,221.65 and 15,101.70 is: 22,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,481.10 : 29,221.65 = 15,101.70 : x
  2. Step 2: Convert to fraction form
    19,481.10/29,221.65 = 15,101.70/x
  3. Step 3: Cross multiply
    19,481.10x = 29,221.65 × 15,101.70
  4. Step 4: Simplify right side
    19,481.10x = 441,296,591.81
  5. Step 5: Solve for x
    x = 441,296,591.81/19,481.10
  6. Step 6: Final answer
    x = 22,652.55

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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.