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Finding the Fourth Proportional to 28,893.54, 43,335.66 and 9,167.61

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Solution

The fourth proportional to 28,893.54, 43,335.66 and 9,167.61 is: 13,749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.54 : 43,335.66 = 9,167.61 : x
  2. Step 2: Convert to fraction form
    28,893.54/43,335.66 = 9,167.61/x
  3. Step 3: Cross multiply
    28,893.54x = 43,335.66 × 9,167.61
  4. Step 4: Simplify right side
    28,893.54x = 397,284,429.97
  5. Step 5: Solve for x
    x = 397,284,429.97/28,893.54
  6. Step 6: Final answer
    x = 13,749.94

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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.