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Finding the Fourth Proportional to 17,675.55, 26,469.54 and 12,984.39

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Solution

The fourth proportional to 17,675.55, 26,469.54 and 12,984.39 is: 19,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,675.55 : 26,469.54 = 12,984.39 : x
  2. Step 2: Convert to fraction form
    17,675.55/26,469.54 = 12,984.39/x
  3. Step 3: Cross multiply
    17,675.55x = 26,469.54 × 12,984.39
  4. Step 4: Simplify right side
    17,675.55x = 343,690,830.48
  5. Step 5: Solve for x
    x = 343,690,830.48/17,675.55
  6. Step 6: Final answer
    x = 19,444.42

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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.