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Finding the Fourth Proportional to 36,503.65, 54,755.48 and 13,131.91

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Solution

The fourth proportional to 36,503.65, 54,755.48 and 13,131.91 is: 19,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,503.65 : 54,755.48 = 13,131.91 : x
  2. Step 2: Convert to fraction form
    36,503.65/54,755.48 = 13,131.91/x
  3. Step 3: Cross multiply
    36,503.65x = 54,755.48 × 13,131.91
  4. Step 4: Simplify right side
    36,503.65x = 719,044,035.37
  5. Step 5: Solve for x
    x = 719,044,035.37/36,503.65
  6. Step 6: Final answer
    x = 19,697.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.