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Finding the Fourth Proportional to 16,728.81, 25,102.94 and 7,494.81

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Solution

The fourth proportional to 16,728.81, 25,102.94 and 7,494.81 is: 11,246.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.81 : 25,102.94 = 7,494.81 : x
  2. Step 2: Convert to fraction form
    16,728.81/25,102.94 = 7,494.81/x
  3. Step 3: Cross multiply
    16,728.81x = 25,102.94 × 7,494.81
  4. Step 4: Simplify right side
    16,728.81x = 188,141,765.74
  5. Step 5: Solve for x
    x = 188,141,765.74/16,728.81
  6. Step 6: Final answer
    x = 11,246.57

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1.5x scale

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.