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Finding the Fourth Proportional to 14,764.86, 20,375.21 and 8,050.53

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Solution

The fourth proportional to 14,764.86, 20,375.21 and 8,050.53 is: 11,109.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,764.86 : 20,375.21 = 8,050.53 : x
  2. Step 2: Convert to fraction form
    14,764.86/20,375.21 = 8,050.53/x
  3. Step 3: Cross multiply
    14,764.86x = 20,375.21 × 8,050.53
  4. Step 4: Simplify right side
    14,764.86x = 164,031,335.89
  5. Step 5: Solve for x
    x = 164,031,335.89/14,764.86
  6. Step 6: Final answer
    x = 11,109.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.