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Finding the Fourth Proportional to 14,855.70, 20,500.61 and 8,883.97

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Solution

The fourth proportional to 14,855.70, 20,500.61 and 8,883.97 is: 12,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.70 : 20,500.61 = 8,883.97 : x
  2. Step 2: Convert to fraction form
    14,855.70/20,500.61 = 8,883.97/x
  3. Step 3: Cross multiply
    14,855.70x = 20,500.61 × 8,883.97
  4. Step 4: Simplify right side
    14,855.70x = 182,126,804.22
  5. Step 5: Solve for x
    x = 182,126,804.22/14,855.70
  6. Step 6: Final answer
    x = 12,259.73

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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.