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Finding the Fourth Proportional to 15,919.76, 21,968.83 and 8,846.00

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Solution

The fourth proportional to 15,919.76, 21,968.83 and 8,846.00 is: 12,207.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.76 : 21,968.83 = 8,846.00 : x
  2. Step 2: Convert to fraction form
    15,919.76/21,968.83 = 8,846.00/x
  3. Step 3: Cross multiply
    15,919.76x = 21,968.83 × 8,846.00
  4. Step 4: Simplify right side
    15,919.76x = 194,336,116.11
  5. Step 5: Solve for x
    x = 194,336,116.11/15,919.76
  6. Step 6: Final answer
    x = 12,207.23

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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.