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Finding the Fourth Proportional to 18,258.69, 25,197 and 10,300.98

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Solution

The fourth proportional to 18,258.69, 25,197 and 10,300.98 is: 14,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.69 : 25,197 = 10,300.98 : x
  2. Step 2: Convert to fraction form
    18,258.69/25,197 = 10,300.98/x
  3. Step 3: Cross multiply
    18,258.69x = 25,197 × 10,300.98
  4. Step 4: Simplify right side
    18,258.69x = 259,553,793.06
  5. Step 5: Solve for x
    x = 259,553,793.06/18,258.69
  6. Step 6: Final answer
    x = 14,215.36

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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.