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Finding the Fourth Proportional to 91,906.72, 137,860.75 and 25,350.64

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Solution

The fourth proportional to 91,906.72, 137,860.75 and 25,350.64 is: 38,026.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,906.72 : 137,860.75 = 25,350.64 : x
  2. Step 2: Convert to fraction form
    91,906.72/137,860.75 = 25,350.64/x
  3. Step 3: Cross multiply
    91,906.72x = 137,860.75 × 25,350.64
  4. Step 4: Simplify right side
    91,906.72x = 3,494,857,930.42
  5. Step 5: Solve for x
    x = 3,494,857,930.42/91,906.72
  6. Step 6: Final answer
    x = 38,026.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.