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Finding the Fourth Proportional to 18,649.99, 25,736.18 and 10,152.12

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Solution

The fourth proportional to 18,649.99, 25,736.18 and 10,152.12 is: 14,009.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.99 : 25,736.18 = 10,152.12 : x
  2. Step 2: Convert to fraction form
    18,649.99/25,736.18 = 10,152.12/x
  3. Step 3: Cross multiply
    18,649.99x = 25,736.18 × 10,152.12
  4. Step 4: Simplify right side
    18,649.99x = 261,276,736.94
  5. Step 5: Solve for x
    x = 261,276,736.94/18,649.99
  6. Step 6: Final answer
    x = 14,009.49

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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.