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Finding the Fourth Proportional to 17,900.82, 24,710.02 and 11,930.31

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Solution

The fourth proportional to 17,900.82, 24,710.02 and 11,930.31 is: 16,468.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,900.82 : 24,710.02 = 11,930.31 : x
  2. Step 2: Convert to fraction form
    17,900.82/24,710.02 = 11,930.31/x
  3. Step 3: Cross multiply
    17,900.82x = 24,710.02 × 11,930.31
  4. Step 4: Simplify right side
    17,900.82x = 294,798,322.26
  5. Step 5: Solve for x
    x = 294,798,322.26/17,900.82
  6. Step 6: Final answer
    x = 16,468.42

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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.