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Finding the Fourth Proportional to 7,603.22, 11,423.28 and 7,183.64

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Solution

The fourth proportional to 7,603.22, 11,423.28 and 7,183.64 is: 10,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.22 : 11,423.28 = 7,183.64 : x
  2. Step 2: Convert to fraction form
    7,603.22/11,423.28 = 7,183.64/x
  3. Step 3: Cross multiply
    7,603.22x = 11,423.28 × 7,183.64
  4. Step 4: Simplify right side
    7,603.22x = 82,060,731.14
  5. Step 5: Solve for x
    x = 82,060,731.14/7,603.22
  6. Step 6: Final answer
    x = 10,792.89

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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.