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Finding the Fourth Proportional to 36,615.98, 50,520.98 and 20,700.09

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Solution

The fourth proportional to 36,615.98, 50,520.98 and 20,700.09 is: 28,561.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,615.98 : 50,520.98 = 20,700.09 : x
  2. Step 2: Convert to fraction form
    36,615.98/50,520.98 = 20,700.09/x
  3. Step 3: Cross multiply
    36,615.98x = 50,520.98 × 20,700.09
  4. Step 4: Simplify right side
    36,615.98x = 1,045,788,729.39
  5. Step 5: Solve for x
    x = 1,045,788,729.39/36,615.98
  6. Step 6: Final answer
    x = 28,561.00

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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.