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Finding the Fourth Proportional to 8,622.95, 12,934.33 and 6,079.57

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Solution

The fourth proportional to 8,622.95, 12,934.33 and 6,079.57 is: 9,119.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.95 : 12,934.33 = 6,079.57 : x
  2. Step 2: Convert to fraction form
    8,622.95/12,934.33 = 6,079.57/x
  3. Step 3: Cross multiply
    8,622.95x = 12,934.33 × 6,079.57
  4. Step 4: Simplify right side
    8,622.95x = 78,635,164.64
  5. Step 5: Solve for x
    x = 78,635,164.64/8,622.95
  6. Step 6: Final answer
    x = 9,119.29

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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.