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Finding the Fourth Proportional to 45,378.81, 62,619.15 and 25,234.50

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Solution

The fourth proportional to 45,378.81, 62,619.15 and 25,234.50 is: 34,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,378.81 : 62,619.15 = 25,234.50 : x
  2. Step 2: Convert to fraction form
    45,378.81/62,619.15 = 25,234.50/x
  3. Step 3: Cross multiply
    45,378.81x = 62,619.15 × 25,234.50
  4. Step 4: Simplify right side
    45,378.81x = 1,580,162,940.68
  5. Step 5: Solve for x
    x = 1,580,162,940.68/45,378.81
  6. Step 6: Final answer
    x = 34,821.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.