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Finding the Fourth Proportional to 17,080, 23,572.56 and 9,628

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Solution

The fourth proportional to 17,080, 23,572.56 and 9,628 is: 13,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,080 : 23,572.56 = 9,628 : x
  2. Step 2: Convert to fraction form
    17,080/23,572.56 = 9,628/x
  3. Step 3: Cross multiply
    17,080x = 23,572.56 × 9,628
  4. Step 4: Simplify right side
    17,080x = 226,956,607.68
  5. Step 5: Solve for x
    x = 226,956,607.68/17,080
  6. Step 6: Final answer
    x = 13,287.86

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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.