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Finding the Fourth Proportional to 14,899.59, 20,560.41 and 8,185.50

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Solution

The fourth proportional to 14,899.59, 20,560.41 and 8,185.50 is: 11,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,899.59 : 20,560.41 = 8,185.50 : x
  2. Step 2: Convert to fraction form
    14,899.59/20,560.41 = 8,185.50/x
  3. Step 3: Cross multiply
    14,899.59x = 20,560.41 × 8,185.50
  4. Step 4: Simplify right side
    14,899.59x = 168,297,236.06
  5. Step 5: Solve for x
    x = 168,297,236.06/14,899.59
  6. Step 6: Final answer
    x = 11,295.43

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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.