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Finding the Fourth Proportional to 8,021.76, 11,069.76 and 4,484.96

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Solution

The fourth proportional to 8,021.76, 11,069.76 and 4,484.96 is: 6,189.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.76 : 11,069.76 = 4,484.96 : x
  2. Step 2: Convert to fraction form
    8,021.76/11,069.76 = 4,484.96/x
  3. Step 3: Cross multiply
    8,021.76x = 11,069.76 × 4,484.96
  4. Step 4: Simplify right side
    8,021.76x = 49,647,430.81
  5. Step 5: Solve for x
    x = 49,647,430.81/8,021.76
  6. Step 6: Final answer
    x = 6,189.09

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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.