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Finding the Fourth Proportional to 3,059.88, 4,590.33 and 979.93

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Solution

The fourth proportional to 3,059.88, 4,590.33 and 979.93 is: 1,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.88 : 4,590.33 = 979.93 : x
  2. Step 2: Convert to fraction form
    3,059.88/4,590.33 = 979.93/x
  3. Step 3: Cross multiply
    3,059.88x = 4,590.33 × 979.93
  4. Step 4: Simplify right side
    3,059.88x = 4,498,202.08
  5. Step 5: Solve for x
    x = 4,498,202.08/3,059.88
  6. Step 6: Final answer
    x = 1,470.06

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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.