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Finding the Fourth Proportional to 6,662.15, 9,986.39 and 4,808.67

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Solution

The fourth proportional to 6,662.15, 9,986.39 and 4,808.67 is: 7,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.15 : 9,986.39 = 4,808.67 : x
  2. Step 2: Convert to fraction form
    6,662.15/9,986.39 = 4,808.67/x
  3. Step 3: Cross multiply
    6,662.15x = 9,986.39 × 4,808.67
  4. Step 4: Simplify right side
    6,662.15x = 48,021,210.54
  5. Step 5: Solve for x
    x = 48,021,210.54/6,662.15
  6. Step 6: Final answer
    x = 7,208.07

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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.