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Finding the Fourth Proportional to 12,404.12, 18,606.12 and 3,170.12

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Solution

The fourth proportional to 12,404.12, 18,606.12 and 3,170.12 is: 4,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,404.12 : 18,606.12 = 3,170.12 : x
  2. Step 2: Convert to fraction form
    12,404.12/18,606.12 = 3,170.12/x
  3. Step 3: Cross multiply
    12,404.12x = 18,606.12 × 3,170.12
  4. Step 4: Simplify right side
    12,404.12x = 58,983,633.13
  5. Step 5: Solve for x
    x = 58,983,633.13/12,404.12
  6. Step 6: Final answer
    x = 4,755.16

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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.