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Finding the Fourth Proportional to 36,661.98, 50,589.27 and 20,530.20

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Solution

The fourth proportional to 36,661.98, 50,589.27 and 20,530.20 is: 28,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,661.98 : 50,589.27 = 20,530.20 : x
  2. Step 2: Convert to fraction form
    36,661.98/50,589.27 = 20,530.20/x
  3. Step 3: Cross multiply
    36,661.98x = 50,589.27 × 20,530.20
  4. Step 4: Simplify right side
    36,661.98x = 1,038,607,830.95
  5. Step 5: Solve for x
    x = 1,038,607,830.95/36,661.98
  6. Step 6: Final answer
    x = 28,329.29

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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.