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Finding the Fourth Proportional to 36,561.40, 54,798 and 16,812.88

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Solution

The fourth proportional to 36,561.40, 54,798 and 16,812.88 is: 25,199.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,561.40 : 54,798 = 16,812.88 : x
  2. Step 2: Convert to fraction form
    36,561.40/54,798 = 16,812.88/x
  3. Step 3: Cross multiply
    36,561.40x = 54,798 × 16,812.88
  4. Step 4: Simplify right side
    36,561.40x = 921,312,198.24
  5. Step 5: Solve for x
    x = 921,312,198.24/36,561.40
  6. Step 6: Final answer
    x = 25,199.04

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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.