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Finding the Fourth Proportional to 6,668.20, 9,202.12 and 4,903.12

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Solution

The fourth proportional to 6,668.20, 9,202.12 and 4,903.12 is: 6,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.20 : 9,202.12 = 4,903.12 : x
  2. Step 2: Convert to fraction form
    6,668.20/9,202.12 = 4,903.12/x
  3. Step 3: Cross multiply
    6,668.20x = 9,202.12 × 4,903.12
  4. Step 4: Simplify right side
    6,668.20x = 45,119,098.61
  5. Step 5: Solve for x
    x = 45,119,098.61/6,668.20
  6. Step 6: Final answer
    x = 6,766.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.