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Finding the Fourth Proportional to 15,956.59, 22,020.86 and 8,883.02

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Solution

The fourth proportional to 15,956.59, 22,020.86 and 8,883.02 is: 12,258.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,956.59 : 22,020.86 = 8,883.02 : x
  2. Step 2: Convert to fraction form
    15,956.59/22,020.86 = 8,883.02/x
  3. Step 3: Cross multiply
    15,956.59x = 22,020.86 × 8,883.02
  4. Step 4: Simplify right side
    15,956.59x = 195,611,739.80
  5. Step 5: Solve for x
    x = 195,611,739.80/15,956.59
  6. Step 6: Final answer
    x = 12,258.99

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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.