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Finding the Fourth Proportional to 36,399.60, 54,599.40 and 14,213.70

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Solution

The fourth proportional to 36,399.60, 54,599.40 and 14,213.70 is: 21,320.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,399.60 : 54,599.40 = 14,213.70 : x
  2. Step 2: Convert to fraction form
    36,399.60/54,599.40 = 14,213.70/x
  3. Step 3: Cross multiply
    36,399.60x = 54,599.40 × 14,213.70
  4. Step 4: Simplify right side
    36,399.60x = 776,059,491.78
  5. Step 5: Solve for x
    x = 776,059,491.78/36,399.60
  6. Step 6: Final answer
    x = 21,320.55

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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.