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Finding the Fourth Proportional to 8,769.66, 12,101.54 and 4,789.94

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Solution

The fourth proportional to 8,769.66, 12,101.54 and 4,789.94 is: 6,609.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.66 : 12,101.54 = 4,789.94 : x
  2. Step 2: Convert to fraction form
    8,769.66/12,101.54 = 4,789.94/x
  3. Step 3: Cross multiply
    8,769.66x = 12,101.54 × 4,789.94
  4. Step 4: Simplify right side
    8,769.66x = 57,965,650.51
  5. Step 5: Solve for x
    x = 57,965,650.51/8,769.66
  6. Step 6: Final answer
    x = 6,609.79

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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.