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Finding the Fourth Proportional to 11,222.76, 16,834.32 and 7,953.60

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Solution

The fourth proportional to 11,222.76, 16,834.32 and 7,953.60 is: 11,930.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.76 : 16,834.32 = 7,953.60 : x
  2. Step 2: Convert to fraction form
    11,222.76/16,834.32 = 7,953.60/x
  3. Step 3: Cross multiply
    11,222.76x = 16,834.32 × 7,953.60
  4. Step 4: Simplify right side
    11,222.76x = 133,893,447.55
  5. Step 5: Solve for x
    x = 133,893,447.55/11,222.76
  6. Step 6: Final answer
    x = 11,930.53

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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.