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Finding the Fourth Proportional to 30,758.96, 42,442.56 and 17,329.52

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Solution

The fourth proportional to 30,758.96, 42,442.56 and 17,329.52 is: 23,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,758.96 : 42,442.56 = 17,329.52 : x
  2. Step 2: Convert to fraction form
    30,758.96/42,442.56 = 17,329.52/x
  3. Step 3: Cross multiply
    30,758.96x = 42,442.56 × 17,329.52
  4. Step 4: Simplify right side
    30,758.96x = 735,509,192.37
  5. Step 5: Solve for x
    x = 735,509,192.37/30,758.96
  6. Step 6: Final answer
    x = 23,912.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.