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Finding the Fourth Proportional to 11,774.57, 16,248.91 and 6,469.21

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Solution

The fourth proportional to 11,774.57, 16,248.91 and 6,469.21 is: 8,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,774.57 : 16,248.91 = 6,469.21 : x
  2. Step 2: Convert to fraction form
    11,774.57/16,248.91 = 6,469.21/x
  3. Step 3: Cross multiply
    11,774.57x = 16,248.91 × 6,469.21
  4. Step 4: Simplify right side
    11,774.57x = 105,117,578.72
  5. Step 5: Solve for x
    x = 105,117,578.72/11,774.57
  6. Step 6: Final answer
    x = 8,927.51

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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.