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Finding the Fourth Proportional to 73,093.74, 100,869.75 and 39,559.74

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Solution

The fourth proportional to 73,093.74, 100,869.75 and 39,559.74 is: 54,592.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,093.74 : 100,869.75 = 39,559.74 : x
  2. Step 2: Convert to fraction form
    73,093.74/100,869.75 = 39,559.74/x
  3. Step 3: Cross multiply
    73,093.74x = 100,869.75 × 39,559.74
  4. Step 4: Simplify right side
    73,093.74x = 3,990,381,083.87
  5. Step 5: Solve for x
    x = 3,990,381,083.87/73,093.74
  6. Step 6: Final answer
    x = 54,592.65

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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.