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Finding the Fourth Proportional to 16,955.52, 23,400 and 9,404.22

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Solution

The fourth proportional to 16,955.52, 23,400 and 9,404.22 is: 12,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,955.52 : 23,400 = 9,404.22 : x
  2. Step 2: Convert to fraction form
    16,955.52/23,400 = 9,404.22/x
  3. Step 3: Cross multiply
    16,955.52x = 23,400 × 9,404.22
  4. Step 4: Simplify right side
    16,955.52x = 220,058,748.00
  5. Step 5: Solve for x
    x = 220,058,748.00/16,955.52
  6. Step 6: Final answer
    x = 12,978.59

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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.