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Finding the Fourth Proportional to 17,028.80, 23,498.88 and 9,576.80

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Solution

The fourth proportional to 17,028.80, 23,498.88 and 9,576.80 is: 13,215.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,028.80 : 23,498.88 = 9,576.80 : x
  2. Step 2: Convert to fraction form
    17,028.80/23,498.88 = 9,576.80/x
  3. Step 3: Cross multiply
    17,028.80x = 23,498.88 × 9,576.80
  4. Step 4: Simplify right side
    17,028.80x = 225,044,073.98
  5. Step 5: Solve for x
    x = 225,044,073.98/17,028.80
  6. Step 6: Final answer
    x = 13,215.50

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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.