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Finding the Fourth Proportional to 5,662.10, 8,486.79 and 2,661.62

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Solution

The fourth proportional to 5,662.10, 8,486.79 and 2,661.62 is: 3,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662.10 : 8,486.79 = 2,661.62 : x
  2. Step 2: Convert to fraction form
    5,662.10/8,486.79 = 2,661.62/x
  3. Step 3: Cross multiply
    5,662.10x = 8,486.79 × 2,661.62
  4. Step 4: Simplify right side
    5,662.10x = 22,588,610.00
  5. Step 5: Solve for x
    x = 22,588,610.00/5,662.10
  6. Step 6: Final answer
    x = 3,989.44

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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.