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Finding the Fourth Proportional to 8,771.64, 13,157.73 and 3,573.87

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Solution

The fourth proportional to 8,771.64, 13,157.73 and 3,573.87 is: 5,360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.64 : 13,157.73 = 3,573.87 : x
  2. Step 2: Convert to fraction form
    8,771.64/13,157.73 = 3,573.87/x
  3. Step 3: Cross multiply
    8,771.64x = 13,157.73 × 3,573.87
  4. Step 4: Simplify right side
    8,771.64x = 47,024,016.52
  5. Step 5: Solve for x
    x = 47,024,016.52/8,771.64
  6. Step 6: Final answer
    x = 5,360.92

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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.