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Finding the Fourth Proportional to 5,979.31, 8,955.05 and 5,771.68

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Solution

The fourth proportional to 5,979.31, 8,955.05 and 5,771.68 is: 8,644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.31 : 8,955.05 = 5,771.68 : x
  2. Step 2: Convert to fraction form
    5,979.31/8,955.05 = 5,771.68/x
  3. Step 3: Cross multiply
    5,979.31x = 8,955.05 × 5,771.68
  4. Step 4: Simplify right side
    5,979.31x = 51,685,682.98
  5. Step 5: Solve for x
    x = 51,685,682.98/5,979.31
  6. Step 6: Final answer
    x = 8,644.09

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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.