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Finding the Fourth Proportional to 14,213.94, 21,321.94 and 4,351.94

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Solution

The fourth proportional to 14,213.94, 21,321.94 and 4,351.94 is: 6,528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.94 : 21,321.94 = 4,351.94 : x
  2. Step 2: Convert to fraction form
    14,213.94/21,321.94 = 4,351.94/x
  3. Step 3: Cross multiply
    14,213.94x = 21,321.94 × 4,351.94
  4. Step 4: Simplify right side
    14,213.94x = 92,791,803.56
  5. Step 5: Solve for x
    x = 92,791,803.56/14,213.94
  6. Step 6: Final answer
    x = 6,528.23

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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.