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Finding the Fourth Proportional to 25,637.94, 38,460.96 and 8,111.88

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Solution

The fourth proportional to 25,637.94, 38,460.96 and 8,111.88 is: 12,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,637.94 : 38,460.96 = 8,111.88 : x
  2. Step 2: Convert to fraction form
    25,637.94/38,460.96 = 8,111.88/x
  3. Step 3: Cross multiply
    25,637.94x = 38,460.96 × 8,111.88
  4. Step 4: Simplify right side
    25,637.94x = 311,990,692.20
  5. Step 5: Solve for x
    x = 311,990,692.20/25,637.94
  6. Step 6: Final answer
    x = 12,169.10

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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.