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Finding the Fourth Proportional to 6,693.75, 9,239.42 and 4,930.49

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Solution

The fourth proportional to 6,693.75, 9,239.42 and 4,930.49 is: 6,805.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,693.75 : 9,239.42 = 4,930.49 : x
  2. Step 2: Convert to fraction form
    6,693.75/9,239.42 = 4,930.49/x
  3. Step 3: Cross multiply
    6,693.75x = 9,239.42 × 4,930.49
  4. Step 4: Simplify right side
    6,693.75x = 45,554,797.07
  5. Step 5: Solve for x
    x = 45,554,797.07/6,693.75
  6. Step 6: Final answer
    x = 6,805.57

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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.