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Finding the Fourth Proportional to 12,573.85, 18,863.88 and 8,883.31

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Solution

The fourth proportional to 12,573.85, 18,863.88 and 8,883.31 is: 13,327.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.85 : 18,863.88 = 8,883.31 : x
  2. Step 2: Convert to fraction form
    12,573.85/18,863.88 = 8,883.31/x
  3. Step 3: Cross multiply
    12,573.85x = 18,863.88 × 8,883.31
  4. Step 4: Simplify right side
    12,573.85x = 167,573,693.84
  5. Step 5: Solve for x
    x = 167,573,693.84/12,573.85
  6. Step 6: Final answer
    x = 13,327.16

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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.