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Finding the Fourth Proportional to 14,764.89, 20,375.40 and 8,050.50

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Solution

The fourth proportional to 14,764.89, 20,375.40 and 8,050.50 is: 11,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,764.89 : 20,375.40 = 8,050.50 : x
  2. Step 2: Convert to fraction form
    14,764.89/20,375.40 = 8,050.50/x
  3. Step 3: Cross multiply
    14,764.89x = 20,375.40 × 8,050.50
  4. Step 4: Simplify right side
    14,764.89x = 164,032,157.70
  5. Step 5: Solve for x
    x = 164,032,157.70/14,764.89
  6. Step 6: Final answer
    x = 11,109.61

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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.