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Finding the Fourth Proportional to 15,906.08, 21,951.06 and 8,833.16

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Solution

The fourth proportional to 15,906.08, 21,951.06 and 8,833.16 is: 12,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,906.08 : 21,951.06 = 8,833.16 : x
  2. Step 2: Convert to fraction form
    15,906.08/21,951.06 = 8,833.16/x
  3. Step 3: Cross multiply
    15,906.08x = 21,951.06 × 8,833.16
  4. Step 4: Simplify right side
    15,906.08x = 193,897,225.15
  5. Step 5: Solve for x
    x = 193,897,225.15/15,906.08
  6. Step 6: Final answer
    x = 12,190.13

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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.