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Finding the Fourth Proportional to 9,879.81, 14,819.72 and 4,036.42

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Solution

The fourth proportional to 9,879.81, 14,819.72 and 4,036.42 is: 6,054.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.81 : 14,819.72 = 4,036.42 : x
  2. Step 2: Convert to fraction form
    9,879.81/14,819.72 = 4,036.42/x
  3. Step 3: Cross multiply
    9,879.81x = 14,819.72 × 4,036.42
  4. Step 4: Simplify right side
    9,879.81x = 59,818,663.04
  5. Step 5: Solve for x
    x = 59,818,663.04/9,879.81
  6. Step 6: Final answer
    x = 6,054.63

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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.