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Finding the Fourth Proportional to 30,755.52, 46,111.50 and 18,245.88

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Solution

The fourth proportional to 30,755.52, 46,111.50 and 18,245.88 is: 27,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,755.52 : 46,111.50 = 18,245.88 : x
  2. Step 2: Convert to fraction form
    30,755.52/46,111.50 = 18,245.88/x
  3. Step 3: Cross multiply
    30,755.52x = 46,111.50 × 18,245.88
  4. Step 4: Simplify right side
    30,755.52x = 841,344,895.62
  5. Step 5: Solve for x
    x = 841,344,895.62/30,755.52
  6. Step 6: Final answer
    x = 27,355.90

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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.