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Finding the Fourth Proportional to 8,774.91, 13,162.36 and 4,389.97

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Solution

The fourth proportional to 8,774.91, 13,162.36 and 4,389.97 is: 6,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.91 : 13,162.36 = 4,389.97 : x
  2. Step 2: Convert to fraction form
    8,774.91/13,162.36 = 4,389.97/x
  3. Step 3: Cross multiply
    8,774.91x = 13,162.36 × 4,389.97
  4. Step 4: Simplify right side
    8,774.91x = 57,782,365.53
  5. Step 5: Solve for x
    x = 57,782,365.53/8,774.91
  6. Step 6: Final answer
    x = 6,584.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.