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Finding the Fourth Proportional to 5,553.94, 8,330.91 and 1,449.94

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Solution

The fourth proportional to 5,553.94, 8,330.91 and 1,449.94 is: 2,174.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.94 : 8,330.91 = 1,449.94 : x
  2. Step 2: Convert to fraction form
    5,553.94/8,330.91 = 1,449.94/x
  3. Step 3: Cross multiply
    5,553.94x = 8,330.91 × 1,449.94
  4. Step 4: Simplify right side
    5,553.94x = 12,079,312.40
  5. Step 5: Solve for x
    x = 12,079,312.40/5,553.94
  6. Step 6: Final answer
    x = 2,174.91

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Double scale
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Similar ratio
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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.