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Finding the Fourth Proportional to 5,590.44, 7,712.15 and 4,019.45

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Solution

The fourth proportional to 5,590.44, 7,712.15 and 4,019.45 is: 5,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.44 : 7,712.15 = 4,019.45 : x
  2. Step 2: Convert to fraction form
    5,590.44/7,712.15 = 4,019.45/x
  3. Step 3: Cross multiply
    5,590.44x = 7,712.15 × 4,019.45
  4. Step 4: Simplify right side
    5,590.44x = 30,998,601.32
  5. Step 5: Solve for x
    x = 30,998,601.32/5,590.44
  6. Step 6: Final answer
    x = 5,544.93

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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.