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Finding the Fourth Proportional to 20,053.09, 30,080.09 and 6,726.05

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Solution

The fourth proportional to 20,053.09, 30,080.09 and 6,726.05 is: 10,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,053.09 : 30,080.09 = 6,726.05 : x
  2. Step 2: Convert to fraction form
    20,053.09/30,080.09 = 6,726.05/x
  3. Step 3: Cross multiply
    20,053.09x = 30,080.09 × 6,726.05
  4. Step 4: Simplify right side
    20,053.09x = 202,320,189.34
  5. Step 5: Solve for x
    x = 202,320,189.34/20,053.09
  6. Step 6: Final answer
    x = 10,089.23

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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.