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Finding the Fourth Proportional to 18,201.10, 25,516.10 and 18,201.10

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Solution

The fourth proportional to 18,201.10, 25,516.10 and 18,201.10 is: 25,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.10 : 25,516.10 = 18,201.10 : x
  2. Step 2: Convert to fraction form
    18,201.10/25,516.10 = 18,201.10/x
  3. Step 3: Cross multiply
    18,201.10x = 25,516.10 × 18,201.10
  4. Step 4: Simplify right side
    18,201.10x = 464,421,087.71
  5. Step 5: Solve for x
    x = 464,421,087.71/18,201.10
  6. Step 6: Final answer
    x = 25,516.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.