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Finding the Fourth Proportional to 16,893.31, 23,310.89 and 9,339.25

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Solution

The fourth proportional to 16,893.31, 23,310.89 and 9,339.25 is: 12,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,893.31 : 23,310.89 = 9,339.25 : x
  2. Step 2: Convert to fraction form
    16,893.31/23,310.89 = 9,339.25/x
  3. Step 3: Cross multiply
    16,893.31x = 23,310.89 × 9,339.25
  4. Step 4: Simplify right side
    16,893.31x = 217,706,203.19
  5. Step 5: Solve for x
    x = 217,706,203.19/16,893.31
  6. Step 6: Final answer
    x = 12,887.13

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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.