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Finding the Fourth Proportional to 25,722.54, 35,497.98 and 15,111.99

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Solution

The fourth proportional to 25,722.54, 35,497.98 and 15,111.99 is: 20,855.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,722.54 : 35,497.98 = 15,111.99 : x
  2. Step 2: Convert to fraction form
    25,722.54/35,497.98 = 15,111.99/x
  3. Step 3: Cross multiply
    25,722.54x = 35,497.98 × 15,111.99
  4. Step 4: Simplify right side
    25,722.54x = 536,445,118.78
  5. Step 5: Solve for x
    x = 536,445,118.78/25,722.54
  6. Step 6: Final answer
    x = 20,855.06

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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.