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Finding the Fourth Proportional to 18,580.64, 27,875.21 and 8,052.42

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Solution

The fourth proportional to 18,580.64, 27,875.21 and 8,052.42 is: 12,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.64 : 27,875.21 = 8,052.42 : x
  2. Step 2: Convert to fraction form
    18,580.64/27,875.21 = 8,052.42/x
  3. Step 3: Cross multiply
    18,580.64x = 27,875.21 × 8,052.42
  4. Step 4: Simplify right side
    18,580.64x = 224,462,958.13
  5. Step 5: Solve for x
    x = 224,462,958.13/18,580.64
  6. Step 6: Final answer
    x = 12,080.48

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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.