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Finding the Fourth Proportional to 16,905.62, 23,329.68 and 9,453.62

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Solution

The fourth proportional to 16,905.62, 23,329.68 and 9,453.62 is: 13,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.62 : 23,329.68 = 9,453.62 : x
  2. Step 2: Convert to fraction form
    16,905.62/23,329.68 = 9,453.62/x
  3. Step 3: Cross multiply
    16,905.62x = 23,329.68 × 9,453.62
  4. Step 4: Simplify right side
    16,905.62x = 220,549,929.44
  5. Step 5: Solve for x
    x = 220,549,929.44/16,905.62
  6. Step 6: Final answer
    x = 13,045.95

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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.