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Finding the Fourth Proportional to 8,384.31, 12,576.47 and 8,246.41

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Solution

The fourth proportional to 8,384.31, 12,576.47 and 8,246.41 is: 12,369.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,384.31 : 12,576.47 = 8,246.41 : x
  2. Step 2: Convert to fraction form
    8,384.31/12,576.47 = 8,246.41/x
  3. Step 3: Cross multiply
    8,384.31x = 12,576.47 × 8,246.41
  4. Step 4: Simplify right side
    8,384.31x = 103,710,655.30
  5. Step 5: Solve for x
    x = 103,710,655.30/8,384.31
  6. Step 6: Final answer
    x = 12,369.61

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Double scale
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Similar ratio
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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.