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Finding the Fourth Proportional to 6,790.11, 9,367 and 4,132.90

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Solution

The fourth proportional to 6,790.11, 9,367 and 4,132.90 is: 5,701.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.11 : 9,367 = 4,132.90 : x
  2. Step 2: Convert to fraction form
    6,790.11/9,367 = 4,132.90/x
  3. Step 3: Cross multiply
    6,790.11x = 9,367 × 4,132.90
  4. Step 4: Simplify right side
    6,790.11x = 38,712,874.30
  5. Step 5: Solve for x
    x = 38,712,874.30/6,790.11
  6. Step 6: Final answer
    x = 5,701.36

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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.