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Finding the Fourth Proportional to 36,003.99, 49,685.08 and 19,871.42

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Solution

The fourth proportional to 36,003.99, 49,685.08 and 19,871.42 is: 27,422.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,003.99 : 49,685.08 = 19,871.42 : x
  2. Step 2: Convert to fraction form
    36,003.99/49,685.08 = 19,871.42/x
  3. Step 3: Cross multiply
    36,003.99x = 49,685.08 × 19,871.42
  4. Step 4: Simplify right side
    36,003.99x = 987,312,993.06
  5. Step 5: Solve for x
    x = 987,312,993.06/36,003.99
  6. Step 6: Final answer
    x = 27,422.32

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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.