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Finding the Fourth Proportional to 5,553.84, 8,330.58 and 1,449.84

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Solution

The fourth proportional to 5,553.84, 8,330.58 and 1,449.84 is: 2,174.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.84 : 8,330.58 = 1,449.84 : x
  2. Step 2: Convert to fraction form
    5,553.84/8,330.58 = 1,449.84/x
  3. Step 3: Cross multiply
    5,553.84x = 8,330.58 × 1,449.84
  4. Step 4: Simplify right side
    5,553.84x = 12,078,008.11
  5. Step 5: Solve for x
    x = 12,078,008.11/5,553.84
  6. Step 6: Final answer
    x = 2,174.71

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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.