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Finding the Fourth Proportional to 16,652.21, 24,990.64 and 7,887.14

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Solution

The fourth proportional to 16,652.21, 24,990.64 and 7,887.14 is: 11,836.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,652.21 : 24,990.64 = 7,887.14 : x
  2. Step 2: Convert to fraction form
    16,652.21/24,990.64 = 7,887.14/x
  3. Step 3: Cross multiply
    16,652.21x = 24,990.64 × 7,887.14
  4. Step 4: Simplify right side
    16,652.21x = 197,104,719.13
  5. Step 5: Solve for x
    x = 197,104,719.13/16,652.21
  6. Step 6: Final answer
    x = 11,836.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.