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Finding the Fourth Proportional to 54,571.68, 81,857.52 and 39,019.68

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Solution

The fourth proportional to 54,571.68, 81,857.52 and 39,019.68 is: 58,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,571.68 : 81,857.52 = 39,019.68 : x
  2. Step 2: Convert to fraction form
    54,571.68/81,857.52 = 39,019.68/x
  3. Step 3: Cross multiply
    54,571.68x = 81,857.52 × 39,019.68
  4. Step 4: Simplify right side
    54,571.68x = 3,194,054,235.99
  5. Step 5: Solve for x
    x = 3,194,054,235.99/54,571.68
  6. Step 6: Final answer
    x = 58,529.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.