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Finding the Fourth Proportional to 8,718.70, 13,076.22 and 2,873.94

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Solution

The fourth proportional to 8,718.70, 13,076.22 and 2,873.94 is: 4,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.70 : 13,076.22 = 2,873.94 : x
  2. Step 2: Convert to fraction form
    8,718.70/13,076.22 = 2,873.94/x
  3. Step 3: Cross multiply
    8,718.70x = 13,076.22 × 2,873.94
  4. Step 4: Simplify right side
    8,718.70x = 37,580,271.71
  5. Step 5: Solve for x
    x = 37,580,271.71/8,718.70
  6. Step 6: Final answer
    x = 4,310.31

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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.