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Finding the Fourth Proportional to 7,903.09, 10,906.14 and 4,317.97

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Solution

The fourth proportional to 7,903.09, 10,906.14 and 4,317.97 is: 5,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.09 : 10,906.14 = 4,317.97 : x
  2. Step 2: Convert to fraction form
    7,903.09/10,906.14 = 4,317.97/x
  3. Step 3: Cross multiply
    7,903.09x = 10,906.14 × 4,317.97
  4. Step 4: Simplify right side
    7,903.09x = 47,092,425.14
  5. Step 5: Solve for x
    x = 47,092,425.14/7,903.09
  6. Step 6: Final answer
    x = 5,958.73

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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.