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Finding the Fourth Proportional to 8,823.90, 13,223.70 and 5,853.90

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Solution

The fourth proportional to 8,823.90, 13,223.70 and 5,853.90 is: 8,772.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,823.90 : 13,223.70 = 5,853.90 : x
  2. Step 2: Convert to fraction form
    8,823.90/13,223.70 = 5,853.90/x
  3. Step 3: Cross multiply
    8,823.90x = 13,223.70 × 5,853.90
  4. Step 4: Simplify right side
    8,823.90x = 77,410,217.43
  5. Step 5: Solve for x
    x = 77,410,217.43/8,823.90
  6. Step 6: Final answer
    x = 8,772.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.