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Finding the Fourth Proportional to 7,950.35, 11,915.51 and 6,960.74

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Solution

The fourth proportional to 7,950.35, 11,915.51 and 6,960.74 is: 10,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950.35 : 11,915.51 = 6,960.74 : x
  2. Step 2: Convert to fraction form
    7,950.35/11,915.51 = 6,960.74/x
  3. Step 3: Cross multiply
    7,950.35x = 11,915.51 × 6,960.74
  4. Step 4: Simplify right side
    7,950.35x = 82,940,672.70
  5. Step 5: Solve for x
    x = 82,940,672.70/7,950.35
  6. Step 6: Final answer
    x = 10,432.33

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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.