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Finding the Fourth Proportional to 6,627.52, 9,920.94 and 4,153.72

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Solution

The fourth proportional to 6,627.52, 9,920.94 and 4,153.72 is: 6,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627.52 : 9,920.94 = 4,153.72 : x
  2. Step 2: Convert to fraction form
    6,627.52/9,920.94 = 4,153.72/x
  3. Step 3: Cross multiply
    6,627.52x = 9,920.94 × 4,153.72
  4. Step 4: Simplify right side
    6,627.52x = 41,208,806.90
  5. Step 5: Solve for x
    x = 41,208,806.90/6,627.52
  6. Step 6: Final answer
    x = 6,217.83

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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.