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Finding the Fourth Proportional to 5,576.76, 7,696.08 and 4,007.79

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Solution

The fourth proportional to 5,576.76, 7,696.08 and 4,007.79 is: 5,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,576.76 : 7,696.08 = 4,007.79 : x
  2. Step 2: Convert to fraction form
    5,576.76/7,696.08 = 4,007.79/x
  3. Step 3: Cross multiply
    5,576.76x = 7,696.08 × 4,007.79
  4. Step 4: Simplify right side
    5,576.76x = 30,844,272.46
  5. Step 5: Solve for x
    x = 30,844,272.46/5,576.76
  6. Step 6: Final answer
    x = 5,530.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.