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Finding the Fourth Proportional to 12,755.00, 19,131.75 and 5,733.20

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Solution

The fourth proportional to 12,755.00, 19,131.75 and 5,733.20 is: 8,599.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.00 : 19,131.75 = 5,733.20 : x
  2. Step 2: Convert to fraction form
    12,755.00/19,131.75 = 5,733.20/x
  3. Step 3: Cross multiply
    12,755.00x = 19,131.75 × 5,733.20
  4. Step 4: Simplify right side
    12,755.00x = 109,686,053.44
  5. Step 5: Solve for x
    x = 109,686,053.44/12,755.00
  6. Step 6: Final answer
    x = 8,599.46

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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.