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Finding the Fourth Proportional to 80,494.51, 120,759.69 and 26,461.64

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Solution

The fourth proportional to 80,494.51, 120,759.69 and 26,461.64 is: 39,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,494.51 : 120,759.69 = 26,461.64 : x
  2. Step 2: Convert to fraction form
    80,494.51/120,759.69 = 26,461.64/x
  3. Step 3: Cross multiply
    80,494.51x = 120,759.69 × 26,461.64
  4. Step 4: Simplify right side
    80,494.51x = 3,195,498,941.88
  5. Step 5: Solve for x
    x = 3,195,498,941.88/80,494.51
  6. Step 6: Final answer
    x = 39,698.35

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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.