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Finding the Fourth Proportional to 21,052.26, 29,051.26 and 11,620.70

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Solution

The fourth proportional to 21,052.26, 29,051.26 and 11,620.70 is: 16,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.26 : 29,051.26 = 11,620.70 : x
  2. Step 2: Convert to fraction form
    21,052.26/29,051.26 = 11,620.70/x
  3. Step 3: Cross multiply
    21,052.26x = 29,051.26 × 11,620.70
  4. Step 4: Simplify right side
    21,052.26x = 337,595,977.08
  5. Step 5: Solve for x
    x = 337,595,977.08/21,052.26
  6. Step 6: Final answer
    x = 16,036.09

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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.