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Finding the Fourth Proportional to 14,763.94, 20,375.15 and 8,476.31

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Solution

The fourth proportional to 14,763.94, 20,375.15 and 8,476.31 is: 11,697.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,763.94 : 20,375.15 = 8,476.31 : x
  2. Step 2: Convert to fraction form
    14,763.94/20,375.15 = 8,476.31/x
  3. Step 3: Cross multiply
    14,763.94x = 20,375.15 × 8,476.31
  4. Step 4: Simplify right side
    14,763.94x = 172,706,096.25
  5. Step 5: Solve for x
    x = 172,706,096.25/14,763.94
  6. Step 6: Final answer
    x = 11,697.83

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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.