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Finding the Fourth Proportional to 19,908.30, 29,862.45 and 14,052.30

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Solution

The fourth proportional to 19,908.30, 29,862.45 and 14,052.30 is: 21,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908.30 : 29,862.45 = 14,052.30 : x
  2. Step 2: Convert to fraction form
    19,908.30/29,862.45 = 14,052.30/x
  3. Step 3: Cross multiply
    19,908.30x = 29,862.45 × 14,052.30
  4. Step 4: Simplify right side
    19,908.30x = 419,636,106.14
  5. Step 5: Solve for x
    x = 419,636,106.14/19,908.30
  6. Step 6: Final answer
    x = 21,078.45

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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.