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Finding the Fourth Proportional to 25,986.27, 38,981.86 and 7,266.30

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Solution

The fourth proportional to 25,986.27, 38,981.86 and 7,266.30 is: 10,900.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,986.27 : 38,981.86 = 7,266.30 : x
  2. Step 2: Convert to fraction form
    25,986.27/38,981.86 = 7,266.30/x
  3. Step 3: Cross multiply
    25,986.27x = 38,981.86 × 7,266.30
  4. Step 4: Simplify right side
    25,986.27x = 283,253,968.10
  5. Step 5: Solve for x
    x = 283,253,968.10/25,986.27
  6. Step 6: Final answer
    x = 10,900.14

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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.