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Finding the Fourth Proportional to 69,735.60, 104,591.28 and 19,804.02

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Solution

The fourth proportional to 69,735.60, 104,591.28 and 19,804.02 is: 29,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,735.60 : 104,591.28 = 19,804.02 : x
  2. Step 2: Convert to fraction form
    69,735.60/104,591.28 = 19,804.02/x
  3. Step 3: Cross multiply
    69,735.60x = 104,591.28 × 19,804.02
  4. Step 4: Simplify right side
    69,735.60x = 2,071,327,800.95
  5. Step 5: Solve for x
    x = 2,071,327,800.95/69,735.60
  6. Step 6: Final answer
    x = 29,702.59

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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.