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Finding the Fourth Proportional to 39,190.71, 54,083.16 and 22,423.71

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Solution

The fourth proportional to 39,190.71, 54,083.16 and 22,423.71 is: 30,944.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190.71 : 54,083.16 = 22,423.71 : x
  2. Step 2: Convert to fraction form
    39,190.71/54,083.16 = 22,423.71/x
  3. Step 3: Cross multiply
    39,190.71x = 54,083.16 × 22,423.71
  4. Step 4: Simplify right side
    39,190.71x = 1,212,745,095.72
  5. Step 5: Solve for x
    x = 1,212,745,095.72/39,190.71
  6. Step 6: Final answer
    x = 30,944.71

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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.