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Finding the Fourth Proportional to 13,682.59, 20,524.88 and 4,917.58

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Solution

The fourth proportional to 13,682.59, 20,524.88 and 4,917.58 is: 7,376.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.59 : 20,524.88 = 4,917.58 : x
  2. Step 2: Convert to fraction form
    13,682.59/20,524.88 = 4,917.58/x
  3. Step 3: Cross multiply
    13,682.59x = 20,524.88 × 4,917.58
  4. Step 4: Simplify right side
    13,682.59x = 100,932,700.37
  5. Step 5: Solve for x
    x = 100,932,700.37/13,682.59
  6. Step 6: Final answer
    x = 7,376.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.