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Finding the Fourth Proportional to 16,807.12, 23,193.60 and 9,355.12

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Solution

The fourth proportional to 16,807.12, 23,193.60 and 9,355.12 is: 12,909.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.12 : 23,193.60 = 9,355.12 : x
  2. Step 2: Convert to fraction form
    16,807.12/23,193.60 = 9,355.12/x
  3. Step 3: Cross multiply
    16,807.12x = 23,193.60 × 9,355.12
  4. Step 4: Simplify right side
    16,807.12x = 216,978,911.23
  5. Step 5: Solve for x
    x = 216,978,911.23/16,807.12
  6. Step 6: Final answer
    x = 12,909.94

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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.