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Finding the Fourth Proportional to 11,789.59, 16,269.63 and 6,484.76

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Solution

The fourth proportional to 11,789.59, 16,269.63 and 6,484.76 is: 8,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789.59 : 16,269.63 = 6,484.76 : x
  2. Step 2: Convert to fraction form
    11,789.59/16,269.63 = 6,484.76/x
  3. Step 3: Cross multiply
    11,789.59x = 16,269.63 × 6,484.76
  4. Step 4: Simplify right side
    11,789.59x = 105,504,645.84
  5. Step 5: Solve for x
    x = 105,504,645.84/11,789.59
  6. Step 6: Final answer
    x = 8,948.97

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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.