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Finding the Fourth Proportional to 25,370.72, 38,055.36 and 11,343.68

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Solution

The fourth proportional to 25,370.72, 38,055.36 and 11,343.68 is: 17,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,370.72 : 38,055.36 = 11,343.68 : x
  2. Step 2: Convert to fraction form
    25,370.72/38,055.36 = 11,343.68/x
  3. Step 3: Cross multiply
    25,370.72x = 38,055.36 × 11,343.68
  4. Step 4: Simplify right side
    25,370.72x = 431,687,826.12
  5. Step 5: Solve for x
    x = 431,687,826.12/25,370.72
  6. Step 6: Final answer
    x = 17,015.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.