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Finding the Fourth Proportional to 17,190.24, 25,785.12 and 4,878.24

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Solution

The fourth proportional to 17,190.24, 25,785.12 and 4,878.24 is: 7,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,190.24 : 25,785.12 = 4,878.24 : x
  2. Step 2: Convert to fraction form
    17,190.24/25,785.12 = 4,878.24/x
  3. Step 3: Cross multiply
    17,190.24x = 25,785.12 × 4,878.24
  4. Step 4: Simplify right side
    17,190.24x = 125,786,003.79
  5. Step 5: Solve for x
    x = 125,786,003.79/17,190.24
  6. Step 6: Final answer
    x = 7,317.29

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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.