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Finding the Fourth Proportional to 8,930.70, 12,324.36 and 4,951.86

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Solution

The fourth proportional to 8,930.70, 12,324.36 and 4,951.86 is: 6,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.70 : 12,324.36 = 4,951.86 : x
  2. Step 2: Convert to fraction form
    8,930.70/12,324.36 = 4,951.86/x
  3. Step 3: Cross multiply
    8,930.70x = 12,324.36 × 4,951.86
  4. Step 4: Simplify right side
    8,930.70x = 61,028,505.31
  5. Step 5: Solve for x
    x = 61,028,505.31/8,930.70
  6. Step 6: Final answer
    x = 6,833.56

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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.