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Finding the Fourth Proportional to 12,759.08, 17,608.98 and 8,043.08

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Solution

The fourth proportional to 12,759.08, 17,608.98 and 8,043.08 is: 11,100.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.08 : 17,608.98 = 8,043.08 : x
  2. Step 2: Convert to fraction form
    12,759.08/17,608.98 = 8,043.08/x
  3. Step 3: Cross multiply
    12,759.08x = 17,608.98 × 8,043.08
  4. Step 4: Simplify right side
    12,759.08x = 141,630,434.86
  5. Step 5: Solve for x
    x = 141,630,434.86/12,759.08
  6. Step 6: Final answer
    x = 11,100.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.