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Finding the Fourth Proportional to 34,092.40, 51,141.30 and 11,905.30

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Solution

The fourth proportional to 34,092.40, 51,141.30 and 11,905.30 is: 17,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,092.40 : 51,141.30 = 11,905.30 : x
  2. Step 2: Convert to fraction form
    34,092.40/51,141.30 = 11,905.30/x
  3. Step 3: Cross multiply
    34,092.40x = 51,141.30 × 11,905.30
  4. Step 4: Simplify right side
    34,092.40x = 608,852,518.89
  5. Step 5: Solve for x
    x = 608,852,518.89/34,092.40
  6. Step 6: Final answer
    x = 17,858.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.