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Finding the Fourth Proportional to 9,879.70, 14,815.23 and 2,952.58

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Solution

The fourth proportional to 9,879.70, 14,815.23 and 2,952.58 is: 4,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.70 : 14,815.23 = 2,952.58 : x
  2. Step 2: Convert to fraction form
    9,879.70/14,815.23 = 2,952.58/x
  3. Step 3: Cross multiply
    9,879.70x = 14,815.23 × 2,952.58
  4. Step 4: Simplify right side
    9,879.70x = 43,743,151.79
  5. Step 5: Solve for x
    x = 43,743,151.79/9,879.70
  6. Step 6: Final answer
    x = 4,427.58

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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.