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Finding the Fourth Proportional to 8,377.68, 11,551.74 and 5,348.72

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Solution

The fourth proportional to 8,377.68, 11,551.74 and 5,348.72 is: 7,375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.68 : 11,551.74 = 5,348.72 : x
  2. Step 2: Convert to fraction form
    8,377.68/11,551.74 = 5,348.72/x
  3. Step 3: Cross multiply
    8,377.68x = 11,551.74 × 5,348.72
  4. Step 4: Simplify right side
    8,377.68x = 61,787,022.77
  5. Step 5: Solve for x
    x = 61,787,022.77/8,377.68
  6. Step 6: Final answer
    x = 7,375.19

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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.