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Finding the Fourth Proportional to 16,612.12, 24,925.47 and 12,908.80

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Solution

The fourth proportional to 16,612.12, 24,925.47 and 12,908.80 is: 19,368.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,612.12 : 24,925.47 = 12,908.80 : x
  2. Step 2: Convert to fraction form
    16,612.12/24,925.47 = 12,908.80/x
  3. Step 3: Cross multiply
    16,612.12x = 24,925.47 × 12,908.80
  4. Step 4: Simplify right side
    16,612.12x = 321,757,907.14
  5. Step 5: Solve for x
    x = 321,757,907.14/16,612.12
  6. Step 6: Final answer
    x = 19,368.86

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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.