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Finding the Fourth Proportional to 34,354.50, 47,409.22 and 19,450.50

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Solution

The fourth proportional to 34,354.50, 47,409.22 and 19,450.50 is: 26,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,354.50 : 47,409.22 = 19,450.50 : x
  2. Step 2: Convert to fraction form
    34,354.50/47,409.22 = 19,450.50/x
  3. Step 3: Cross multiply
    34,354.50x = 47,409.22 × 19,450.50
  4. Step 4: Simplify right side
    34,354.50x = 922,133,033.61
  5. Step 5: Solve for x
    x = 922,133,033.61/34,354.50
  6. Step 6: Final answer
    x = 26,841.70

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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.