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Finding the Fourth Proportional to 17,019.40, 25,407.89 and 14,394.28

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Solution

The fourth proportional to 17,019.40, 25,407.89 and 14,394.28 is: 21,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,019.40 : 25,407.89 = 14,394.28 : x
  2. Step 2: Convert to fraction form
    17,019.40/25,407.89 = 14,394.28/x
  3. Step 3: Cross multiply
    17,019.40x = 25,407.89 × 14,394.28
  4. Step 4: Simplify right side
    17,019.40x = 365,728,282.87
  5. Step 5: Solve for x
    x = 365,728,282.87/17,019.40
  6. Step 6: Final answer
    x = 21,488.91

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.