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Finding the Fourth Proportional to 73,086.75, 100,860.32 and 39,552.75

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Solution

The fourth proportional to 73,086.75, 100,860.32 and 39,552.75 is: 54,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,086.75 : 100,860.32 = 39,552.75 : x
  2. Step 2: Convert to fraction form
    73,086.75/100,860.32 = 39,552.75/x
  3. Step 3: Cross multiply
    73,086.75x = 100,860.32 × 39,552.75
  4. Step 4: Simplify right side
    73,086.75x = 3,989,303,120.76
  5. Step 5: Solve for x
    x = 3,989,303,120.76/73,086.75
  6. Step 6: Final answer
    x = 54,583.12

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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.