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Finding the Fourth Proportional to 17,267.80, 25,851.30 and 12,904.60

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Solution

The fourth proportional to 17,267.80, 25,851.30 and 12,904.60 is: 19,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,267.80 : 25,851.30 = 12,904.60 : x
  2. Step 2: Convert to fraction form
    17,267.80/25,851.30 = 12,904.60/x
  3. Step 3: Cross multiply
    17,267.80x = 25,851.30 × 12,904.60
  4. Step 4: Simplify right side
    17,267.80x = 333,600,685.98
  5. Step 5: Solve for x
    x = 333,600,685.98/17,267.80
  6. Step 6: Final answer
    x = 19,319.23

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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.