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Finding the Fourth Proportional to 8,590.82, 11,855.12 and 5,054.26

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Solution

The fourth proportional to 8,590.82, 11,855.12 and 5,054.26 is: 6,974.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.82 : 11,855.12 = 5,054.26 : x
  2. Step 2: Convert to fraction form
    8,590.82/11,855.12 = 5,054.26/x
  3. Step 3: Cross multiply
    8,590.82x = 11,855.12 × 5,054.26
  4. Step 4: Simplify right side
    8,590.82x = 59,918,799.54
  5. Step 5: Solve for x
    x = 59,918,799.54/8,590.82
  6. Step 6: Final answer
    x = 6,974.75

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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.