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Finding the Fourth Proportional to 25,755.36, 38,621.13 and 11,714.82

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Solution

The fourth proportional to 25,755.36, 38,621.13 and 11,714.82 is: 17,566.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,755.36 : 38,621.13 = 11,714.82 : x
  2. Step 2: Convert to fraction form
    25,755.36/38,621.13 = 11,714.82/x
  3. Step 3: Cross multiply
    25,755.36x = 38,621.13 × 11,714.82
  4. Step 4: Simplify right side
    25,755.36x = 452,439,586.15
  5. Step 5: Solve for x
    x = 452,439,586.15/25,755.36
  6. Step 6: Final answer
    x = 17,566.81

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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.