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Finding the Fourth Proportional to 25,634.64, 38,452.28 and 8,106

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Solution

The fourth proportional to 25,634.64, 38,452.28 and 8,106 is: 12,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,634.64 : 38,452.28 = 8,106 : x
  2. Step 2: Convert to fraction form
    25,634.64/38,452.28 = 8,106/x
  3. Step 3: Cross multiply
    25,634.64x = 38,452.28 × 8,106
  4. Step 4: Simplify right side
    25,634.64x = 311,694,181.68
  5. Step 5: Solve for x
    x = 311,694,181.68/25,634.64
  6. Step 6: Final answer
    x = 12,159.10

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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.