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Finding the Fourth Proportional to 73,084.34, 100,856.49 and 39,550.34

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Solution

The fourth proportional to 73,084.34, 100,856.49 and 39,550.34 is: 54,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,084.34 : 100,856.49 = 39,550.34 : x
  2. Step 2: Convert to fraction form
    73,084.34/100,856.49 = 39,550.34/x
  3. Step 3: Cross multiply
    73,084.34x = 100,856.49 × 39,550.34
  4. Step 4: Simplify right side
    73,084.34x = 3,988,908,470.71
  5. Step 5: Solve for x
    x = 3,988,908,470.71/73,084.34
  6. Step 6: Final answer
    x = 54,579.52

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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.