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Finding the Fourth Proportional to 45,047.88, 67,570.44 and 18,751.96

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Solution

The fourth proportional to 45,047.88, 67,570.44 and 18,751.96 is: 28,127.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,047.88 : 67,570.44 = 18,751.96 : x
  2. Step 2: Convert to fraction form
    45,047.88/67,570.44 = 18,751.96/x
  3. Step 3: Cross multiply
    45,047.88x = 67,570.44 × 18,751.96
  4. Step 4: Simplify right side
    45,047.88x = 1,267,078,188.06
  5. Step 5: Solve for x
    x = 1,267,078,188.06/45,047.88
  6. Step 6: Final answer
    x = 28,127.37

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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.