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Finding the Fourth Proportional to 8,053.78, 12,080.67 and 2,859.52

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Solution

The fourth proportional to 8,053.78, 12,080.67 and 2,859.52 is: 4,289.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,053.78 : 12,080.67 = 2,859.52 : x
  2. Step 2: Convert to fraction form
    8,053.78/12,080.67 = 2,859.52/x
  3. Step 3: Cross multiply
    8,053.78x = 12,080.67 × 2,859.52
  4. Step 4: Simplify right side
    8,053.78x = 34,544,917.48
  5. Step 5: Solve for x
    x = 34,544,917.48/8,053.78
  6. Step 6: Final answer
    x = 4,289.28

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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.