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Finding the Fourth Proportional to 8,858.70, 12,229.38 and 6,040.71

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Solution

The fourth proportional to 8,858.70, 12,229.38 and 6,040.71 is: 8,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.70 : 12,229.38 = 6,040.71 : x
  2. Step 2: Convert to fraction form
    8,858.70/12,229.38 = 6,040.71/x
  3. Step 3: Cross multiply
    8,858.70x = 12,229.38 × 6,040.71
  4. Step 4: Simplify right side
    8,858.70x = 73,874,138.06
  5. Step 5: Solve for x
    x = 73,874,138.06/8,858.70
  6. Step 6: Final answer
    x = 8,339.16

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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.