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Finding the Fourth Proportional to 8,695.91, 13,044.80 and 2,771.40

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Solution

The fourth proportional to 8,695.91, 13,044.80 and 2,771.40 is: 4,157.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.91 : 13,044.80 = 2,771.40 : x
  2. Step 2: Convert to fraction form
    8,695.91/13,044.80 = 2,771.40/x
  3. Step 3: Cross multiply
    8,695.91x = 13,044.80 × 2,771.40
  4. Step 4: Simplify right side
    8,695.91x = 36,152,414.57
  5. Step 5: Solve for x
    x = 36,152,414.57/8,695.91
  6. Step 6: Final answer
    x = 4,157.41

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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.