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Finding the Fourth Proportional to 6,609.60, 9,914.67 and 2,230.20

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Solution

The fourth proportional to 6,609.60, 9,914.67 and 2,230.20 is: 3,345.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.60 : 9,914.67 = 2,230.20 : x
  2. Step 2: Convert to fraction form
    6,609.60/9,914.67 = 2,230.20/x
  3. Step 3: Cross multiply
    6,609.60x = 9,914.67 × 2,230.20
  4. Step 4: Simplify right side
    6,609.60x = 22,111,697.03
  5. Step 5: Solve for x
    x = 22,111,697.03/6,609.60
  6. Step 6: Final answer
    x = 3,345.39

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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.