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Finding the Fourth Proportional to 18,443.46, 25,451.10 and 10,484.81

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Solution

The fourth proportional to 18,443.46, 25,451.10 and 10,484.81 is: 14,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.46 : 25,451.10 = 10,484.81 : x
  2. Step 2: Convert to fraction form
    18,443.46/25,451.10 = 10,484.81/x
  3. Step 3: Cross multiply
    18,443.46x = 25,451.10 × 10,484.81
  4. Step 4: Simplify right side
    18,443.46x = 266,849,820.54
  5. Step 5: Solve for x
    x = 266,849,820.54/18,443.46
  6. Step 6: Final answer
    x = 14,468.53

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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.