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Finding the Fourth Proportional to 30,069.91, 41,515.32 and 19,319.14

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Solution

The fourth proportional to 30,069.91, 41,515.32 and 19,319.14 is: 26,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,069.91 : 41,515.32 = 19,319.14 : x
  2. Step 2: Convert to fraction form
    30,069.91/41,515.32 = 19,319.14/x
  3. Step 3: Cross multiply
    30,069.91x = 41,515.32 × 19,319.14
  4. Step 4: Simplify right side
    30,069.91x = 802,040,279.22
  5. Step 5: Solve for x
    x = 802,040,279.22/30,069.91
  6. Step 6: Final answer
    x = 26,672.52

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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.