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Finding the Fourth Proportional to 18,942.63, 26,152.03 and 16,840.94

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Solution

The fourth proportional to 18,942.63, 26,152.03 and 16,840.94 is: 23,250.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.63 : 26,152.03 = 16,840.94 : x
  2. Step 2: Convert to fraction form
    18,942.63/26,152.03 = 16,840.94/x
  3. Step 3: Cross multiply
    18,942.63x = 26,152.03 × 16,840.94
  4. Step 4: Simplify right side
    18,942.63x = 440,424,768.11
  5. Step 5: Solve for x
    x = 440,424,768.11/18,942.63
  6. Step 6: Final answer
    x = 23,250.46

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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.