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Finding the Fourth Proportional to 45,463.72, 68,191.26 and 15,881.80

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Solution

The fourth proportional to 45,463.72, 68,191.26 and 15,881.80 is: 23,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,463.72 : 68,191.26 = 15,881.80 : x
  2. Step 2: Convert to fraction form
    45,463.72/68,191.26 = 15,881.80/x
  3. Step 3: Cross multiply
    45,463.72x = 68,191.26 × 15,881.80
  4. Step 4: Simplify right side
    45,463.72x = 1,082,999,953.07
  5. Step 5: Solve for x
    x = 1,082,999,953.07/45,463.72
  6. Step 6: Final answer
    x = 23,821.19

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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.