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Finding the Fourth Proportional to 85,011, 127,519.20 and 25,847.19

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Solution

The fourth proportional to 85,011, 127,519.20 and 25,847.19 is: 38,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,011 : 127,519.20 = 25,847.19 : x
  2. Step 2: Convert to fraction form
    85,011/127,519.20 = 25,847.19/x
  3. Step 3: Cross multiply
    85,011x = 127,519.20 × 25,847.19
  4. Step 4: Simplify right side
    85,011x = 3,296,012,991.05
  5. Step 5: Solve for x
    x = 3,296,012,991.05/85,011
  6. Step 6: Final answer
    x = 38,771.61

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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.