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Finding the Fourth Proportional to 18,139.46, 25,032.24 and 10,181.48

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Solution

The fourth proportional to 18,139.46, 25,032.24 and 10,181.48 is: 14,050.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.46 : 25,032.24 = 10,181.48 : x
  2. Step 2: Convert to fraction form
    18,139.46/25,032.24 = 10,181.48/x
  3. Step 3: Cross multiply
    18,139.46x = 25,032.24 × 10,181.48
  4. Step 4: Simplify right side
    18,139.46x = 254,865,125.75
  5. Step 5: Solve for x
    x = 254,865,125.75/18,139.46
  6. Step 6: Final answer
    x = 14,050.32

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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.