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Finding the Fourth Proportional to 5,788.23, 8,640.44 and 5,087.61

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Solution

The fourth proportional to 5,788.23, 8,640.44 and 5,087.61 is: 7,594.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788.23 : 8,640.44 = 5,087.61 : x
  2. Step 2: Convert to fraction form
    5,788.23/8,640.44 = 5,087.61/x
  3. Step 3: Cross multiply
    5,788.23x = 8,640.44 × 5,087.61
  4. Step 4: Simplify right side
    5,788.23x = 43,959,182.59
  5. Step 5: Solve for x
    x = 43,959,182.59/5,788.23
  6. Step 6: Final answer
    x = 7,594.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.