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Finding the Fourth Proportional to 36,950.64, 50,979.13 and 21,031.03

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Solution

The fourth proportional to 36,950.64, 50,979.13 and 21,031.03 is: 29,015.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,950.64 : 50,979.13 = 21,031.03 : x
  2. Step 2: Convert to fraction form
    36,950.64/50,979.13 = 21,031.03/x
  3. Step 3: Cross multiply
    36,950.64x = 50,979.13 × 21,031.03
  4. Step 4: Simplify right side
    36,950.64x = 1,072,143,612.40
  5. Step 5: Solve for x
    x = 1,072,143,612.40/36,950.64
  6. Step 6: Final answer
    x = 29,015.56

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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.