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Finding the Fourth Proportional to 19,339.75, 29,012.40 and 7,336.32

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Solution

The fourth proportional to 19,339.75, 29,012.40 and 7,336.32 is: 11,005.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,339.75 : 29,012.40 = 7,336.32 : x
  2. Step 2: Convert to fraction form
    19,339.75/29,012.40 = 7,336.32/x
  3. Step 3: Cross multiply
    19,339.75x = 29,012.40 × 7,336.32
  4. Step 4: Simplify right side
    19,339.75x = 212,844,068.62
  5. Step 5: Solve for x
    x = 212,844,068.62/19,339.75
  6. Step 6: Final answer
    x = 11,005.52

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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.