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Finding the Fourth Proportional to 25,098.98, 34,636.60 and 13,920.98

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Solution

The fourth proportional to 25,098.98, 34,636.60 and 13,920.98 is: 19,210.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,098.98 : 34,636.60 = 13,920.98 : x
  2. Step 2: Convert to fraction form
    25,098.98/34,636.60 = 13,920.98/x
  3. Step 3: Cross multiply
    25,098.98x = 34,636.60 × 13,920.98
  4. Step 4: Simplify right side
    25,098.98x = 482,175,415.87
  5. Step 5: Solve for x
    x = 482,175,415.87/25,098.98
  6. Step 6: Final answer
    x = 19,210.96

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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.