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Finding the Fourth Proportional to 8,354.93, 12,525.49 and 3,910.42

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Solution

The fourth proportional to 8,354.93, 12,525.49 and 3,910.42 is: 5,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.93 : 12,525.49 = 3,910.42 : x
  2. Step 2: Convert to fraction form
    8,354.93/12,525.49 = 3,910.42/x
  3. Step 3: Cross multiply
    8,354.93x = 12,525.49 × 3,910.42
  4. Step 4: Simplify right side
    8,354.93x = 48,979,941.09
  5. Step 5: Solve for x
    x = 48,979,941.09/8,354.93
  6. Step 6: Final answer
    x = 5,862.40

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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.