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Finding the Fourth Proportional to 13,763.86, 20,648.86 and 4,404.44

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Solution

The fourth proportional to 13,763.86, 20,648.86 and 4,404.44 is: 6,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.86 : 20,648.86 = 4,404.44 : x
  2. Step 2: Convert to fraction form
    13,763.86/20,648.86 = 4,404.44/x
  3. Step 3: Cross multiply
    13,763.86x = 20,648.86 × 4,404.44
  4. Step 4: Simplify right side
    13,763.86x = 90,946,595.20
  5. Step 5: Solve for x
    x = 90,946,595.20/13,763.86
  6. Step 6: Final answer
    x = 6,607.64

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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.