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Finding the Fourth Proportional to 12,574.06, 18,836.43 and 7,297.99

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Solution

The fourth proportional to 12,574.06, 18,836.43 and 7,297.99 is: 10,932.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.06 : 18,836.43 = 7,297.99 : x
  2. Step 2: Convert to fraction form
    12,574.06/18,836.43 = 7,297.99/x
  3. Step 3: Cross multiply
    12,574.06x = 18,836.43 × 7,297.99
  4. Step 4: Simplify right side
    12,574.06x = 137,468,077.78
  5. Step 5: Solve for x
    x = 137,468,077.78/12,574.06
  6. Step 6: Final answer
    x = 10,932.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.