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Finding the Fourth Proportional to 16,762.70, 25,143.94 and 4,112.30

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Solution

The fourth proportional to 16,762.70, 25,143.94 and 4,112.30 is: 6,168.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,762.70 : 25,143.94 = 4,112.30 : x
  2. Step 2: Convert to fraction form
    16,762.70/25,143.94 = 4,112.30/x
  3. Step 3: Cross multiply
    16,762.70x = 25,143.94 × 4,112.30
  4. Step 4: Simplify right side
    16,762.70x = 103,399,424.46
  5. Step 5: Solve for x
    x = 103,399,424.46/16,762.70
  6. Step 6: Final answer
    x = 6,168.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.