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Finding the Fourth Proportional to 8,048.64, 12,071.68 and 2,576.64

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Solution

The fourth proportional to 8,048.64, 12,071.68 and 2,576.64 is: 3,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,048.64 : 12,071.68 = 2,576.64 : x
  2. Step 2: Convert to fraction form
    8,048.64/12,071.68 = 2,576.64/x
  3. Step 3: Cross multiply
    8,048.64x = 12,071.68 × 2,576.64
  4. Step 4: Simplify right side
    8,048.64x = 31,104,373.56
  5. Step 5: Solve for x
    x = 31,104,373.56/8,048.64
  6. Step 6: Final answer
    x = 3,864.55

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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.