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Finding the Fourth Proportional to 12,249.19, 18,373.88 and 3,015.19

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Solution

The fourth proportional to 12,249.19, 18,373.88 and 3,015.19 is: 4,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.19 : 18,373.88 = 3,015.19 : x
  2. Step 2: Convert to fraction form
    12,249.19/18,373.88 = 3,015.19/x
  3. Step 3: Cross multiply
    12,249.19x = 18,373.88 × 3,015.19
  4. Step 4: Simplify right side
    12,249.19x = 55,400,678.23
  5. Step 5: Solve for x
    x = 55,400,678.23/12,249.19
  6. Step 6: Final answer
    x = 4,522.80

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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.