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Finding the Fourth Proportional to 6,827.22, 9,421.95 and 4,174.20

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Solution

The fourth proportional to 6,827.22, 9,421.95 and 4,174.20 is: 5,760.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,827.22 : 9,421.95 = 4,174.20 : x
  2. Step 2: Convert to fraction form
    6,827.22/9,421.95 = 4,174.20/x
  3. Step 3: Cross multiply
    6,827.22x = 9,421.95 × 4,174.20
  4. Step 4: Simplify right side
    6,827.22x = 39,329,103.69
  5. Step 5: Solve for x
    x = 39,329,103.69/6,827.22
  6. Step 6: Final answer
    x = 5,760.63

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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.