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Finding the Fourth Proportional to 6,693.84, 9,242.04 and 4,179.78

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Solution

The fourth proportional to 6,693.84, 9,242.04 and 4,179.78 is: 5,770.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,693.84 : 9,242.04 = 4,179.78 : x
  2. Step 2: Convert to fraction form
    6,693.84/9,242.04 = 4,179.78/x
  3. Step 3: Cross multiply
    6,693.84x = 9,242.04 × 4,179.78
  4. Step 4: Simplify right side
    6,693.84x = 38,629,693.95
  5. Step 5: Solve for x
    x = 38,629,693.95/6,693.84
  6. Step 6: Final answer
    x = 5,770.93

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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.