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Finding the Fourth Proportional to 15,065.26, 20,790.06 and 8,441.26

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Solution

The fourth proportional to 15,065.26, 20,790.06 and 8,441.26 is: 11,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065.26 : 20,790.06 = 8,441.26 : x
  2. Step 2: Convert to fraction form
    15,065.26/20,790.06 = 8,441.26/x
  3. Step 3: Cross multiply
    15,065.26x = 20,790.06 × 8,441.26
  4. Step 4: Simplify right side
    15,065.26x = 175,494,301.88
  5. Step 5: Solve for x
    x = 175,494,301.88/15,065.26
  6. Step 6: Final answer
    x = 11,648.94

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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.