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Finding the Fourth Proportional to 5,818.94, 8,712.92 and 3,973.66

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Solution

The fourth proportional to 5,818.94, 8,712.92 and 3,973.66 is: 5,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,818.94 : 8,712.92 = 3,973.66 : x
  2. Step 2: Convert to fraction form
    5,818.94/8,712.92 = 3,973.66/x
  3. Step 3: Cross multiply
    5,818.94x = 8,712.92 × 3,973.66
  4. Step 4: Simplify right side
    5,818.94x = 34,622,147.49
  5. Step 5: Solve for x
    x = 34,622,147.49/5,818.94
  6. Step 6: Final answer
    x = 5,949.91

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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.