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Finding the Fourth Proportional to 36,991.70, 55,451.10 and 18,256.40

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Solution

The fourth proportional to 36,991.70, 55,451.10 and 18,256.40 is: 27,366.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,991.70 : 55,451.10 = 18,256.40 : x
  2. Step 2: Convert to fraction form
    36,991.70/55,451.10 = 18,256.40/x
  3. Step 3: Cross multiply
    36,991.70x = 55,451.10 × 18,256.40
  4. Step 4: Simplify right side
    36,991.70x = 1,012,337,462.04
  5. Step 5: Solve for x
    x = 1,012,337,462.04/36,991.70
  6. Step 6: Final answer
    x = 27,366.61

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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.