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Finding the Fourth Proportional to 8,579.58, 12,871.26 and 4,883.55

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Solution

The fourth proportional to 8,579.58, 12,871.26 and 4,883.55 is: 7,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.58 : 12,871.26 = 4,883.55 : x
  2. Step 2: Convert to fraction form
    8,579.58/12,871.26 = 4,883.55/x
  3. Step 3: Cross multiply
    8,579.58x = 12,871.26 × 4,883.55
  4. Step 4: Simplify right side
    8,579.58x = 62,857,441.77
  5. Step 5: Solve for x
    x = 62,857,441.77/8,579.58
  6. Step 6: Final answer
    x = 7,326.40

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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.