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Finding the Fourth Proportional to 25,643.40, 38,466.06 and 9,846.60

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Solution

The fourth proportional to 25,643.40, 38,466.06 and 9,846.60 is: 14,770.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,643.40 : 38,466.06 = 9,846.60 : x
  2. Step 2: Convert to fraction form
    25,643.40/38,466.06 = 9,846.60/x
  3. Step 3: Cross multiply
    25,643.40x = 38,466.06 × 9,846.60
  4. Step 4: Simplify right side
    25,643.40x = 378,759,906.40
  5. Step 5: Solve for x
    x = 378,759,906.40/25,643.40
  6. Step 6: Final answer
    x = 14,770.27

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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.