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Finding the Fourth Proportional to 11,793.76, 16,275.41 and 6,488.91

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Solution

The fourth proportional to 11,793.76, 16,275.41 and 6,488.91 is: 8,954.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.76 : 16,275.41 = 6,488.91 : x
  2. Step 2: Convert to fraction form
    11,793.76/16,275.41 = 6,488.91/x
  3. Step 3: Cross multiply
    11,793.76x = 16,275.41 × 6,488.91
  4. Step 4: Simplify right side
    11,793.76x = 105,609,670.70
  5. Step 5: Solve for x
    x = 105,609,670.70/11,793.76
  6. Step 6: Final answer
    x = 8,954.71

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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.