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Finding the Fourth Proportional to 18,208.97, 25,128.02 and 10,251.02

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Solution

The fourth proportional to 18,208.97, 25,128.02 and 10,251.02 is: 14,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208.97 : 25,128.02 = 10,251.02 : x
  2. Step 2: Convert to fraction form
    18,208.97/25,128.02 = 10,251.02/x
  3. Step 3: Cross multiply
    18,208.97x = 25,128.02 × 10,251.02
  4. Step 4: Simplify right side
    18,208.97x = 257,587,658.69
  5. Step 5: Solve for x
    x = 257,587,658.69/18,208.97
  6. Step 6: Final answer
    x = 14,146.20

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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.