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Finding the Fourth Proportional to 3,575.78, 4,932.14 and 2,454.79

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Solution

The fourth proportional to 3,575.78, 4,932.14 and 2,454.79 is: 3,385.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.78 : 4,932.14 = 2,454.79 : x
  2. Step 2: Convert to fraction form
    3,575.78/4,932.14 = 2,454.79/x
  3. Step 3: Cross multiply
    3,575.78x = 4,932.14 × 2,454.79
  4. Step 4: Simplify right side
    3,575.78x = 12,107,387.21
  5. Step 5: Solve for x
    x = 12,107,387.21/3,575.78
  6. Step 6: Final answer
    x = 3,385.94

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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.