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Finding the Fourth Proportional to 73,471.38, 101,390.57 and 39,937.38

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Solution

The fourth proportional to 73,471.38, 101,390.57 and 39,937.38 is: 55,113.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,471.38 : 101,390.57 = 39,937.38 : x
  2. Step 2: Convert to fraction form
    73,471.38/101,390.57 = 39,937.38/x
  3. Step 3: Cross multiply
    73,471.38x = 101,390.57 × 39,937.38
  4. Step 4: Simplify right side
    73,471.38x = 4,049,273,722.51
  5. Step 5: Solve for x
    x = 4,049,273,722.51/73,471.38
  6. Step 6: Final answer
    x = 55,113.62

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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.