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Finding the Fourth Proportional to 18,622.10, 26,105.50 and 18,622.10

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Solution

The fourth proportional to 18,622.10, 26,105.50 and 18,622.10 is: 26,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.10 : 26,105.50 = 18,622.10 : x
  2. Step 2: Convert to fraction form
    18,622.10/26,105.50 = 18,622.10/x
  3. Step 3: Cross multiply
    18,622.10x = 26,105.50 × 18,622.10
  4. Step 4: Simplify right side
    18,622.10x = 486,139,231.55
  5. Step 5: Solve for x
    x = 486,139,231.55/18,622.10
  6. Step 6: Final answer
    x = 26,105.50

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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.