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Finding the Fourth Proportional to 15,984.14, 22,056.99 and 8,910.95

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Solution

The fourth proportional to 15,984.14, 22,056.99 and 8,910.95 is: 12,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,984.14 : 22,056.99 = 8,910.95 : x
  2. Step 2: Convert to fraction form
    15,984.14/22,056.99 = 8,910.95/x
  3. Step 3: Cross multiply
    15,984.14x = 22,056.99 × 8,910.95
  4. Step 4: Simplify right side
    15,984.14x = 196,548,735.04
  5. Step 5: Solve for x
    x = 196,548,735.04/15,984.14
  6. Step 6: Final answer
    x = 12,296.48

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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.