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Finding the Fourth Proportional to 12,573.60, 18,863.64 and 8,883.12

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Solution

The fourth proportional to 12,573.60, 18,863.64 and 8,883.12 is: 13,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.60 : 18,863.64 = 8,883.12 : x
  2. Step 2: Convert to fraction form
    12,573.60/18,863.64 = 8,883.12/x
  3. Step 3: Cross multiply
    12,573.60x = 18,863.64 × 8,883.12
  4. Step 4: Simplify right side
    12,573.60x = 167,567,977.76
  5. Step 5: Solve for x
    x = 167,567,977.76/12,573.60
  6. Step 6: Final answer
    x = 13,326.97

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1.5x scale

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.