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Finding the Fourth Proportional to 15,906.63, 21,952.14 and 8,833.17

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Solution

The fourth proportional to 15,906.63, 21,952.14 and 8,833.17 is: 12,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,906.63 : 21,952.14 = 8,833.17 : x
  2. Step 2: Convert to fraction form
    15,906.63/21,952.14 = 8,833.17/x
  3. Step 3: Cross multiply
    15,906.63x = 21,952.14 × 8,833.17
  4. Step 4: Simplify right side
    15,906.63x = 193,906,984.48
  5. Step 5: Solve for x
    x = 193,906,984.48/15,906.63
  6. Step 6: Final answer
    x = 12,190.32

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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.