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Finding the Fourth Proportional to 8,843.76, 13,271.72 and 5,722.43

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Solution

The fourth proportional to 8,843.76, 13,271.72 and 5,722.43 is: 8,587.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,843.76 : 13,271.72 = 5,722.43 : x
  2. Step 2: Convert to fraction form
    8,843.76/13,271.72 = 5,722.43/x
  3. Step 3: Cross multiply
    8,843.76x = 13,271.72 × 5,722.43
  4. Step 4: Simplify right side
    8,843.76x = 75,946,393.71
  5. Step 5: Solve for x
    x = 75,946,393.71/8,843.76
  6. Step 6: Final answer
    x = 8,587.57

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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.