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Finding the Fourth Proportional to 4,701.22, 6,472.89 and 3,991.66

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Solution

The fourth proportional to 4,701.22, 6,472.89 and 3,991.66 is: 5,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,701.22 : 6,472.89 = 3,991.66 : x
  2. Step 2: Convert to fraction form
    4,701.22/6,472.89 = 3,991.66/x
  3. Step 3: Cross multiply
    4,701.22x = 6,472.89 × 3,991.66
  4. Step 4: Simplify right side
    4,701.22x = 25,837,576.10
  5. Step 5: Solve for x
    x = 25,837,576.10/4,701.22
  6. Step 6: Final answer
    x = 5,495.93

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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.