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Finding the Fourth Proportional to 15,049.93, 20,769.65 and 9,081.50

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Solution

The fourth proportional to 15,049.93, 20,769.65 and 9,081.50 is: 12,532.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.93 : 20,769.65 = 9,081.50 : x
  2. Step 2: Convert to fraction form
    15,049.93/20,769.65 = 9,081.50/x
  3. Step 3: Cross multiply
    15,049.93x = 20,769.65 × 9,081.50
  4. Step 4: Simplify right side
    15,049.93x = 188,619,427.22
  5. Step 5: Solve for x
    x = 188,619,427.22/15,049.93
  6. Step 6: Final answer
    x = 12,532.91

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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.