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Finding the Fourth Proportional to 56,558.40, 84,847.20 and 17,115.20

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Solution

The fourth proportional to 56,558.40, 84,847.20 and 17,115.20 is: 25,675.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,558.40 : 84,847.20 = 17,115.20 : x
  2. Step 2: Convert to fraction form
    56,558.40/84,847.20 = 17,115.20/x
  3. Step 3: Cross multiply
    56,558.40x = 84,847.20 × 17,115.20
  4. Step 4: Simplify right side
    56,558.40x = 1,452,176,797.44
  5. Step 5: Solve for x
    x = 1,452,176,797.44/56,558.40
  6. Step 6: Final answer
    x = 25,675.71

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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.