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Finding the Fourth Proportional to 3,846.99, 5,308.95 and 2,354.88

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Solution

The fourth proportional to 3,846.99, 5,308.95 and 2,354.88 is: 3,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.99 : 5,308.95 = 2,354.88 : x
  2. Step 2: Convert to fraction form
    3,846.99/5,308.95 = 2,354.88/x
  3. Step 3: Cross multiply
    3,846.99x = 5,308.95 × 2,354.88
  4. Step 4: Simplify right side
    3,846.99x = 12,501,940.18
  5. Step 5: Solve for x
    x = 12,501,940.18/3,846.99
  6. Step 6: Final answer
    x = 3,249.80

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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.