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Finding the Fourth Proportional to 35,255.80, 52,883.70 and 11,879.80

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Solution

The fourth proportional to 35,255.80, 52,883.70 and 11,879.80 is: 17,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,255.80 : 52,883.70 = 11,879.80 : x
  2. Step 2: Convert to fraction form
    35,255.80/52,883.70 = 11,879.80/x
  3. Step 3: Cross multiply
    35,255.80x = 52,883.70 × 11,879.80
  4. Step 4: Simplify right side
    35,255.80x = 628,247,779.26
  5. Step 5: Solve for x
    x = 628,247,779.26/35,255.80
  6. Step 6: Final answer
    x = 17,819.70

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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.