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Finding the Fourth Proportional to 36,738.99, 55,109.07 and 19,242.99

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Solution

The fourth proportional to 36,738.99, 55,109.07 and 19,242.99 is: 28,864.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,738.99 : 55,109.07 = 19,242.99 : x
  2. Step 2: Convert to fraction form
    36,738.99/55,109.07 = 19,242.99/x
  3. Step 3: Cross multiply
    36,738.99x = 55,109.07 × 19,242.99
  4. Step 4: Simplify right side
    36,738.99x = 1,060,463,282.92
  5. Step 5: Solve for x
    x = 1,060,463,282.92/36,738.99
  6. Step 6: Final answer
    x = 28,864.79

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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.