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Finding the Fourth Proportional to 21,052.98, 29,091.54 and 18,027.54

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Solution

The fourth proportional to 21,052.98, 29,091.54 and 18,027.54 is: 24,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.98 : 29,091.54 = 18,027.54 : x
  2. Step 2: Convert to fraction form
    21,052.98/29,091.54 = 18,027.54/x
  3. Step 3: Cross multiply
    21,052.98x = 29,091.54 × 18,027.54
  4. Step 4: Simplify right side
    21,052.98x = 524,448,901.01
  5. Step 5: Solve for x
    x = 524,448,901.01/21,052.98
  6. Step 6: Final answer
    x = 24,910.91

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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.