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Finding the Fourth Proportional to 8,608.29, 11,880.23 and 5,251.29

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Solution

The fourth proportional to 8,608.29, 11,880.23 and 5,251.29 is: 7,247.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.29 : 11,880.23 = 5,251.29 : x
  2. Step 2: Convert to fraction form
    8,608.29/11,880.23 = 5,251.29/x
  3. Step 3: Cross multiply
    8,608.29x = 11,880.23 × 5,251.29
  4. Step 4: Simplify right side
    8,608.29x = 62,386,506.74
  5. Step 5: Solve for x
    x = 62,386,506.74/8,608.29
  6. Step 6: Final answer
    x = 7,247.26

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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.