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Finding the Fourth Proportional to 45,470.72, 68,246.72 and 23,299.20

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Solution

The fourth proportional to 45,470.72, 68,246.72 and 23,299.20 is: 34,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,470.72 : 68,246.72 = 23,299.20 : x
  2. Step 2: Convert to fraction form
    45,470.72/68,246.72 = 23,299.20/x
  3. Step 3: Cross multiply
    45,470.72x = 68,246.72 × 23,299.20
  4. Step 4: Simplify right side
    45,470.72x = 1,590,093,978.62
  5. Step 5: Solve for x
    x = 1,590,093,978.62/45,470.72
  6. Step 6: Final answer
    x = 34,969.62

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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.