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Finding the Fourth Proportional to 7,404.40, 11,105.40 and 6,163.04

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Solution

The fourth proportional to 7,404.40, 11,105.40 and 6,163.04 is: 9,243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.40 : 11,105.40 = 6,163.04 : x
  2. Step 2: Convert to fraction form
    7,404.40/11,105.40 = 6,163.04/x
  3. Step 3: Cross multiply
    7,404.40x = 11,105.40 × 6,163.04
  4. Step 4: Simplify right side
    7,404.40x = 68,443,024.42
  5. Step 5: Solve for x
    x = 68,443,024.42/7,404.40
  6. Step 6: Final answer
    x = 9,243.56

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Half scale
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Double scale
Find fourth proportional to 7,405.40, 11,106.90 and 6,164.04
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.