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Finding the Fourth Proportional to 15,026.14, 20,736.86 and 8,653.70

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Solution

The fourth proportional to 15,026.14, 20,736.86 and 8,653.70 is: 11,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.14 : 20,736.86 = 8,653.70 : x
  2. Step 2: Convert to fraction form
    15,026.14/20,736.86 = 8,653.70/x
  3. Step 3: Cross multiply
    15,026.14x = 20,736.86 × 8,653.70
  4. Step 4: Simplify right side
    15,026.14x = 179,450,565.38
  5. Step 5: Solve for x
    x = 179,450,565.38/15,026.14
  6. Step 6: Final answer
    x = 11,942.56

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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.