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Finding the Fourth Proportional to 15,164.46, 20,926.44 and 8,449.56

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Solution

The fourth proportional to 15,164.46, 20,926.44 and 8,449.56 is: 11,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,164.46 : 20,926.44 = 8,449.56 : x
  2. Step 2: Convert to fraction form
    15,164.46/20,926.44 = 8,449.56/x
  3. Step 3: Cross multiply
    15,164.46x = 20,926.44 × 8,449.56
  4. Step 4: Simplify right side
    15,164.46x = 176,819,210.37
  5. Step 5: Solve for x
    x = 176,819,210.37/15,164.46
  6. Step 6: Final answer
    x = 11,660.11

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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.