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Finding the Fourth Proportional to 15,053.62, 20,775.09 and 9,086.74

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Solution

The fourth proportional to 15,053.62, 20,775.09 and 9,086.74 is: 12,540.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.62 : 20,775.09 = 9,086.74 : x
  2. Step 2: Convert to fraction form
    15,053.62/20,775.09 = 9,086.74/x
  3. Step 3: Cross multiply
    15,053.62x = 20,775.09 × 9,086.74
  4. Step 4: Simplify right side
    15,053.62x = 188,777,841.31
  5. Step 5: Solve for x
    x = 188,777,841.31/15,053.62
  6. Step 6: Final answer
    x = 12,540.36

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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.