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Finding the Fourth Proportional to 8,627.70, 12,925.91 and 3,951.62

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Solution

The fourth proportional to 8,627.70, 12,925.91 and 3,951.62 is: 5,920.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.70 : 12,925.91 = 3,951.62 : x
  2. Step 2: Convert to fraction form
    8,627.70/12,925.91 = 3,951.62/x
  3. Step 3: Cross multiply
    8,627.70x = 12,925.91 × 3,951.62
  4. Step 4: Simplify right side
    8,627.70x = 51,078,284.47
  5. Step 5: Solve for x
    x = 51,078,284.47/8,627.70
  6. Step 6: Final answer
    x = 5,920.27

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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.