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Finding the Fourth Proportional to 22,940.90, 34,368.15 and 11,809.70

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Solution

The fourth proportional to 22,940.90, 34,368.15 and 11,809.70 is: 17,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,940.90 : 34,368.15 = 11,809.70 : x
  2. Step 2: Convert to fraction form
    22,940.90/34,368.15 = 11,809.70/x
  3. Step 3: Cross multiply
    22,940.90x = 34,368.15 × 11,809.70
  4. Step 4: Simplify right side
    22,940.90x = 405,877,541.06
  5. Step 5: Solve for x
    x = 405,877,541.06/22,940.90
  6. Step 6: Final answer
    x = 17,692.31

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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.