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Finding the Fourth Proportional to 36,516.88, 50,388.96 and 20,600.40

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Solution

The fourth proportional to 36,516.88, 50,388.96 and 20,600.40 is: 28,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,516.88 : 50,388.96 = 20,600.40 : x
  2. Step 2: Convert to fraction form
    36,516.88/50,388.96 = 20,600.40/x
  3. Step 3: Cross multiply
    36,516.88x = 50,388.96 × 20,600.40
  4. Step 4: Simplify right side
    36,516.88x = 1,038,032,731.58
  5. Step 5: Solve for x
    x = 1,038,032,731.58/36,516.88
  6. Step 6: Final answer
    x = 28,426.11

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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.