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Finding the Fourth Proportional to 18,297.01, 25,249.89 and 9,913.51

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Solution

The fourth proportional to 18,297.01, 25,249.89 and 9,913.51 is: 13,680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.01 : 25,249.89 = 9,913.51 : x
  2. Step 2: Convert to fraction form
    18,297.01/25,249.89 = 9,913.51/x
  3. Step 3: Cross multiply
    18,297.01x = 25,249.89 × 9,913.51
  4. Step 4: Simplify right side
    18,297.01x = 250,315,037.01
  5. Step 5: Solve for x
    x = 250,315,037.01/18,297.01
  6. Step 6: Final answer
    x = 13,680.65

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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.