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Finding the Fourth Proportional to 26,393,978.90, 39,590,968.35 and 22,142,450.90

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Solution

The fourth proportional to 26,393,978.90, 39,590,968.35 and 22,142,450.90 is: 33,213,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,393,978.90 : 39,590,968.35 = 22,142,450.90 : x
  2. Step 2: Convert to fraction form
    26,393,978.90/39,590,968.35 = 22,142,450.90/x
  3. Step 3: Cross multiply
    26,393,978.90x = 39,590,968.35 × 22,142,450.90
  4. Step 4: Simplify right side
    26,393,978.90x = 876,641,072,773,329
  5. Step 5: Solve for x
    x = 876,641,072,773,329/26,393,978.90
  6. Step 6: Final answer
    x = 33,213,676.35

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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.