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Finding the Fourth Proportional to 4,576.34, 6,864.64 and 1,979.34

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Solution

The fourth proportional to 4,576.34, 6,864.64 and 1,979.34 is: 2,969.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,576.34 : 6,864.64 = 1,979.34 : x
  2. Step 2: Convert to fraction form
    4,576.34/6,864.64 = 1,979.34/x
  3. Step 3: Cross multiply
    4,576.34x = 6,864.64 × 1,979.34
  4. Step 4: Simplify right side
    4,576.34x = 13,587,456.54
  5. Step 5: Solve for x
    x = 13,587,456.54/4,576.34
  6. Step 6: Final answer
    x = 2,969.07

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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.