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Finding the Fourth Proportional to 36,988.50, 55,490.07 and 12,026.94

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Solution

The fourth proportional to 36,988.50, 55,490.07 and 12,026.94 is: 18,042.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,988.50 : 55,490.07 = 12,026.94 : x
  2. Step 2: Convert to fraction form
    36,988.50/55,490.07 = 12,026.94/x
  3. Step 3: Cross multiply
    36,988.50x = 55,490.07 × 12,026.94
  4. Step 4: Simplify right side
    36,988.50x = 667,375,742.49
  5. Step 5: Solve for x
    x = 667,375,742.49/36,988.50
  6. Step 6: Final answer
    x = 18,042.79

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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.