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Finding the Fourth Proportional to 18,161.01, 25,062.75 and 10,203.03

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Solution

The fourth proportional to 18,161.01, 25,062.75 and 10,203.03 is: 14,080.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.01 : 25,062.75 = 10,203.03 : x
  2. Step 2: Convert to fraction form
    18,161.01/25,062.75 = 10,203.03/x
  3. Step 3: Cross multiply
    18,161.01x = 25,062.75 × 10,203.03
  4. Step 4: Simplify right side
    18,161.01x = 255,715,990.13
  5. Step 5: Solve for x
    x = 255,715,990.13/18,161.01
  6. Step 6: Final answer
    x = 14,080.49

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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.