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Finding the Fourth Proportional to 18,297.08, 25,249.97 and 9,913.58

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Solution

The fourth proportional to 18,297.08, 25,249.97 and 9,913.58 is: 13,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.08 : 25,249.97 = 9,913.58 : x
  2. Step 2: Convert to fraction form
    18,297.08/25,249.97 = 9,913.58/x
  3. Step 3: Cross multiply
    18,297.08x = 25,249.97 × 9,913.58
  4. Step 4: Simplify right side
    18,297.08x = 250,317,597.59
  5. Step 5: Solve for x
    x = 250,317,597.59/18,297.08
  6. Step 6: Final answer
    x = 13,680.74

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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.