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Finding the Fourth Proportional to 8,504.60, 12,759.66 and 3,575.61

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Solution

The fourth proportional to 8,504.60, 12,759.66 and 3,575.61 is: 5,364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,504.60 : 12,759.66 = 3,575.61 : x
  2. Step 2: Convert to fraction form
    8,504.60/12,759.66 = 3,575.61/x
  3. Step 3: Cross multiply
    8,504.60x = 12,759.66 × 3,575.61
  4. Step 4: Simplify right side
    8,504.60x = 45,623,567.89
  5. Step 5: Solve for x
    x = 45,623,567.89/8,504.60
  6. Step 6: Final answer
    x = 5,364.58

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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.