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Finding the Fourth Proportional to 36,603.40, 54,861.90 and 15,543.40

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Solution

The fourth proportional to 36,603.40, 54,861.90 and 15,543.40 is: 23,296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,603.40 : 54,861.90 = 15,543.40 : x
  2. Step 2: Convert to fraction form
    36,603.40/54,861.90 = 15,543.40/x
  3. Step 3: Cross multiply
    36,603.40x = 54,861.90 × 15,543.40
  4. Step 4: Simplify right side
    36,603.40x = 852,740,456.46
  5. Step 5: Solve for x
    x = 852,740,456.46/36,603.40
  6. Step 6: Final answer
    x = 23,296.76

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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.