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Finding the Fourth Proportional to 18,331.72, 25,297.55 and 10,373.74

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Solution

The fourth proportional to 18,331.72, 25,297.55 and 10,373.74 is: 14,315.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.72 : 25,297.55 = 10,373.74 : x
  2. Step 2: Convert to fraction form
    18,331.72/25,297.55 = 10,373.74/x
  3. Step 3: Cross multiply
    18,331.72x = 25,297.55 × 10,373.74
  4. Step 4: Simplify right side
    18,331.72x = 262,430,130.13
  5. Step 5: Solve for x
    x = 262,430,130.13/18,331.72
  6. Step 6: Final answer
    x = 14,315.63

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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.