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Finding the Fourth Proportional to 14,899.01, 20,560.97 and 8,185.05

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Solution

The fourth proportional to 14,899.01, 20,560.97 and 8,185.05 is: 11,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,899.01 : 20,560.97 = 8,185.05 : x
  2. Step 2: Convert to fraction form
    14,899.01/20,560.97 = 8,185.05/x
  3. Step 3: Cross multiply
    14,899.01x = 20,560.97 × 8,185.05
  4. Step 4: Simplify right side
    14,899.01x = 168,292,587.96
  5. Step 5: Solve for x
    x = 168,292,587.96/14,899.01
  6. Step 6: Final answer
    x = 11,295.56

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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.