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Finding the Fourth Proportional to 6,809.42, 9,383.36 and 4,917.66

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Solution

The fourth proportional to 6,809.42, 9,383.36 and 4,917.66 is: 6,776.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,809.42 : 9,383.36 = 4,917.66 : x
  2. Step 2: Convert to fraction form
    6,809.42/9,383.36 = 4,917.66/x
  3. Step 3: Cross multiply
    6,809.42x = 9,383.36 × 4,917.66
  4. Step 4: Simplify right side
    6,809.42x = 46,144,149.55
  5. Step 5: Solve for x
    x = 46,144,149.55/6,809.42
  6. Step 6: Final answer
    x = 6,776.52

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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.