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Finding the Fourth Proportional to 73,084.59, 100,856.84 and 39,550.59

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Solution

The fourth proportional to 73,084.59, 100,856.84 and 39,550.59 is: 54,579.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,084.59 : 100,856.84 = 39,550.59 : x
  2. Step 2: Convert to fraction form
    73,084.59/100,856.84 = 39,550.59/x
  3. Step 3: Cross multiply
    73,084.59x = 100,856.84 × 39,550.59
  4. Step 4: Simplify right side
    73,084.59x = 3,988,947,329.78
  5. Step 5: Solve for x
    x = 3,988,947,329.78/73,084.59
  6. Step 6: Final answer
    x = 54,579.87

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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.