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Finding the Fourth Proportional to 16,643.10, 22,968.21 and 9,571.86

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Solution

The fourth proportional to 16,643.10, 22,968.21 and 9,571.86 is: 13,209.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643.10 : 22,968.21 = 9,571.86 : x
  2. Step 2: Convert to fraction form
    16,643.10/22,968.21 = 9,571.86/x
  3. Step 3: Cross multiply
    16,643.10x = 22,968.21 × 9,571.86
  4. Step 4: Simplify right side
    16,643.10x = 219,848,490.57
  5. Step 5: Solve for x
    x = 219,848,490.57/16,643.10
  6. Step 6: Final answer
    x = 13,209.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.