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Finding the Fourth Proportional to 36,912.51, 55,377.56 and 11,952.56

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Solution

The fourth proportional to 36,912.51, 55,377.56 and 11,952.56 is: 17,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.51 : 55,377.56 = 11,952.56 : x
  2. Step 2: Convert to fraction form
    36,912.51/55,377.56 = 11,952.56/x
  3. Step 3: Cross multiply
    36,912.51x = 55,377.56 × 11,952.56
  4. Step 4: Simplify right side
    36,912.51x = 661,903,776.88
  5. Step 5: Solve for x
    x = 661,903,776.88/36,912.51
  6. Step 6: Final answer
    x = 17,931.69

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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.