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Finding the Fourth Proportional to 6,668.25, 9,202.20 and 4,015.77

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Solution

The fourth proportional to 6,668.25, 9,202.20 and 4,015.77 is: 5,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.25 : 9,202.20 = 4,015.77 : x
  2. Step 2: Convert to fraction form
    6,668.25/9,202.20 = 4,015.77/x
  3. Step 3: Cross multiply
    6,668.25x = 9,202.20 × 4,015.77
  4. Step 4: Simplify right side
    6,668.25x = 36,953,918.69
  5. Step 5: Solve for x
    x = 36,953,918.69/6,668.25
  6. Step 6: Final answer
    x = 5,541.77

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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.