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Finding the Fourth Proportional to 15,174.63, 20,944.35 and 9,860.22

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Solution

The fourth proportional to 15,174.63, 20,944.35 and 9,860.22 is: 13,609.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.63 : 20,944.35 = 9,860.22 : x
  2. Step 2: Convert to fraction form
    15,174.63/20,944.35 = 9,860.22/x
  3. Step 3: Cross multiply
    15,174.63x = 20,944.35 × 9,860.22
  4. Step 4: Simplify right side
    15,174.63x = 206,515,926.47
  5. Step 5: Solve for x
    x = 206,515,926.47/15,174.63
  6. Step 6: Final answer
    x = 13,609.29

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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.