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Finding the Fourth Proportional to 17,008.61, 25,458.30 and 9,091.31

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Solution

The fourth proportional to 17,008.61, 25,458.30 and 9,091.31 is: 13,607.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,008.61 : 25,458.30 = 9,091.31 : x
  2. Step 2: Convert to fraction form
    17,008.61/25,458.30 = 9,091.31/x
  3. Step 3: Cross multiply
    17,008.61x = 25,458.30 × 9,091.31
  4. Step 4: Simplify right side
    17,008.61x = 231,449,170.08
  5. Step 5: Solve for x
    x = 231,449,170.08/17,008.61
  6. Step 6: Final answer
    x = 13,607.77

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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.