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Finding the Fourth Proportional to 14,640.21, 21,961.22 and 5,873.99

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Solution

The fourth proportional to 14,640.21, 21,961.22 and 5,873.99 is: 8,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.21 : 21,961.22 = 5,873.99 : x
  2. Step 2: Convert to fraction form
    14,640.21/21,961.22 = 5,873.99/x
  3. Step 3: Cross multiply
    14,640.21x = 21,961.22 × 5,873.99
  4. Step 4: Simplify right side
    14,640.21x = 128,999,847.49
  5. Step 5: Solve for x
    x = 128,999,847.49/14,640.21
  6. Step 6: Final answer
    x = 8,811.34

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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.