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Finding the Fourth Proportional to 5,789.94, 7,990.02 and 4,718.58

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Solution

The fourth proportional to 5,789.94, 7,990.02 and 4,718.58 is: 6,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.94 : 7,990.02 = 4,718.58 : x
  2. Step 2: Convert to fraction form
    5,789.94/7,990.02 = 4,718.58/x
  3. Step 3: Cross multiply
    5,789.94x = 7,990.02 × 4,718.58
  4. Step 4: Simplify right side
    5,789.94x = 37,701,548.57
  5. Step 5: Solve for x
    x = 37,701,548.57/5,789.94
  6. Step 6: Final answer
    x = 6,511.56

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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.