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Finding the Fourth Proportional to 14,765.29, 20,375.35 and 8,050.86

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Solution

The fourth proportional to 14,765.29, 20,375.35 and 8,050.86 is: 11,109.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.29 : 20,375.35 = 8,050.86 : x
  2. Step 2: Convert to fraction form
    14,765.29/20,375.35 = 8,050.86/x
  3. Step 3: Cross multiply
    14,765.29x = 20,375.35 × 8,050.86
  4. Step 4: Simplify right side
    14,765.29x = 164,039,070.17
  5. Step 5: Solve for x
    x = 164,039,070.17/14,765.29
  6. Step 6: Final answer
    x = 11,109.78

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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.