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Finding the Fourth Proportional to 16,803.12, 23,188.08 and 9,351.12

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Solution

The fourth proportional to 16,803.12, 23,188.08 and 9,351.12 is: 12,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,803.12 : 23,188.08 = 9,351.12 : x
  2. Step 2: Convert to fraction form
    16,803.12/23,188.08 = 9,351.12/x
  3. Step 3: Cross multiply
    16,803.12x = 23,188.08 × 9,351.12
  4. Step 4: Simplify right side
    16,803.12x = 216,834,518.65
  5. Step 5: Solve for x
    x = 216,834,518.65/16,803.12
  6. Step 6: Final answer
    x = 12,904.42

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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.