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Finding the Fourth Proportional to 25,555.29, 35,255.21 and 18,000.42

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Solution

The fourth proportional to 25,555.29, 35,255.21 and 18,000.42 is: 24,832.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,555.29 : 35,255.21 = 18,000.42 : x
  2. Step 2: Convert to fraction form
    25,555.29/35,255.21 = 18,000.42/x
  3. Step 3: Cross multiply
    25,555.29x = 35,255.21 × 18,000.42
  4. Step 4: Simplify right side
    25,555.29x = 634,608,587.19
  5. Step 5: Solve for x
    x = 634,608,587.19/25,555.29
  6. Step 6: Final answer
    x = 24,832.77

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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.