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Finding the Fourth Proportional to 19,957.26, 29,947.56 and 11,080.07

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Solution

The fourth proportional to 19,957.26, 29,947.56 and 11,080.07 is: 16,626.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.26 : 29,947.56 = 11,080.07 : x
  2. Step 2: Convert to fraction form
    19,957.26/29,947.56 = 11,080.07/x
  3. Step 3: Cross multiply
    19,957.26x = 29,947.56 × 11,080.07
  4. Step 4: Simplify right side
    19,957.26x = 331,820,911.39
  5. Step 5: Solve for x
    x = 331,820,911.39/19,957.26
  6. Step 6: Final answer
    x = 16,626.58

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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.