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Finding the Fourth Proportional to 18,438.26, 25,444.73 and 10,054.76

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Solution

The fourth proportional to 18,438.26, 25,444.73 and 10,054.76 is: 13,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.26 : 25,444.73 = 10,054.76 : x
  2. Step 2: Convert to fraction form
    18,438.26/25,444.73 = 10,054.76/x
  3. Step 3: Cross multiply
    18,438.26x = 25,444.73 × 10,054.76
  4. Step 4: Simplify right side
    18,438.26x = 255,840,551.33
  5. Step 5: Solve for x
    x = 255,840,551.33/18,438.26
  6. Step 6: Final answer
    x = 13,875.53

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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.