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Finding the Fourth Proportional to 8,367.57, 12,555.54 and 5,918.13

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Solution

The fourth proportional to 8,367.57, 12,555.54 and 5,918.13 is: 8,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.57 : 12,555.54 = 5,918.13 : x
  2. Step 2: Convert to fraction form
    8,367.57/12,555.54 = 5,918.13/x
  3. Step 3: Cross multiply
    8,367.57x = 12,555.54 × 5,918.13
  4. Step 4: Simplify right side
    8,367.57x = 74,305,317.94
  5. Step 5: Solve for x
    x = 74,305,317.94/8,367.57
  6. Step 6: Final answer
    x = 8,880.15

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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.