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Finding the Fourth Proportional to 22,893.78, 31,592.94 and 12,684.54

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Solution

The fourth proportional to 22,893.78, 31,592.94 and 12,684.54 is: 17,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,893.78 : 31,592.94 = 12,684.54 : x
  2. Step 2: Convert to fraction form
    22,893.78/31,592.94 = 12,684.54/x
  3. Step 3: Cross multiply
    22,893.78x = 31,592.94 × 12,684.54
  4. Step 4: Simplify right side
    22,893.78x = 400,741,911.15
  5. Step 5: Solve for x
    x = 400,741,911.15/22,893.78
  6. Step 6: Final answer
    x = 17,504.40

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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.