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Finding the Fourth Proportional to 25,798.42, 35,608.17 and 15,732.42

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Solution

The fourth proportional to 25,798.42, 35,608.17 and 15,732.42 is: 21,714.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,798.42 : 35,608.17 = 15,732.42 : x
  2. Step 2: Convert to fraction form
    25,798.42/35,608.17 = 15,732.42/x
  3. Step 3: Cross multiply
    25,798.42x = 35,608.17 × 15,732.42
  4. Step 4: Simplify right side
    25,798.42x = 560,202,685.87
  5. Step 5: Solve for x
    x = 560,202,685.87/25,798.42
  6. Step 6: Final answer
    x = 21,714.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.