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Finding the Fourth Proportional to 18,576.96, 27,851.84 and 6,890.24

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Solution

The fourth proportional to 18,576.96, 27,851.84 and 6,890.24 is: 10,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.96 : 27,851.84 = 6,890.24 : x
  2. Step 2: Convert to fraction form
    18,576.96/27,851.84 = 6,890.24/x
  3. Step 3: Cross multiply
    18,576.96x = 27,851.84 × 6,890.24
  4. Step 4: Simplify right side
    18,576.96x = 191,905,862.04
  5. Step 5: Solve for x
    x = 191,905,862.04/18,576.96
  6. Step 6: Final answer
    x = 10,330.32

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1.5x scale

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.