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Finding the Fourth Proportional to 36,311.70, 54,427.05 and 14,117.70

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Solution

The fourth proportional to 36,311.70, 54,427.05 and 14,117.70 is: 21,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,311.70 : 54,427.05 = 14,117.70 : x
  2. Step 2: Convert to fraction form
    36,311.70/54,427.05 = 14,117.70/x
  3. Step 3: Cross multiply
    36,311.70x = 54,427.05 × 14,117.70
  4. Step 4: Simplify right side
    36,311.70x = 768,384,763.79
  5. Step 5: Solve for x
    x = 768,384,763.79/36,311.70
  6. Step 6: Final answer
    x = 21,160.80

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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.