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Finding the Fourth Proportional to 6,553.91, 9,044.61 and 3,721.41

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Solution

The fourth proportional to 6,553.91, 9,044.61 and 3,721.41 is: 5,135.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,553.91 : 9,044.61 = 3,721.41 : x
  2. Step 2: Convert to fraction form
    6,553.91/9,044.61 = 3,721.41/x
  3. Step 3: Cross multiply
    6,553.91x = 9,044.61 × 3,721.41
  4. Step 4: Simplify right side
    6,553.91x = 33,658,702.10
  5. Step 5: Solve for x
    x = 33,658,702.10/6,553.91
  6. Step 6: Final answer
    x = 5,135.67

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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.