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Finding the Fourth Proportional to 7,873.03, 11,809.58 and 2,029.20

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Solution

The fourth proportional to 7,873.03, 11,809.58 and 2,029.20 is: 3,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.03 : 11,809.58 = 2,029.20 : x
  2. Step 2: Convert to fraction form
    7,873.03/11,809.58 = 2,029.20/x
  3. Step 3: Cross multiply
    7,873.03x = 11,809.58 × 2,029.20
  4. Step 4: Simplify right side
    7,873.03x = 23,963,999.74
  5. Step 5: Solve for x
    x = 23,963,999.74/7,873.03
  6. Step 6: Final answer
    x = 3,043.81

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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.