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Finding the Fourth Proportional to 25,136.25, 34,688.03 and 13,958.25

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Solution

The fourth proportional to 25,136.25, 34,688.03 and 13,958.25 is: 19,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,136.25 : 34,688.03 = 13,958.25 : x
  2. Step 2: Convert to fraction form
    25,136.25/34,688.03 = 13,958.25/x
  3. Step 3: Cross multiply
    25,136.25x = 34,688.03 × 13,958.25
  4. Step 4: Simplify right side
    25,136.25x = 484,184,124.96
  5. Step 5: Solve for x
    x = 484,184,124.96/25,136.25
  6. Step 6: Final answer
    x = 19,262.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.