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Finding the Fourth Proportional to 12,751.26, 18,998.73 and 12,035.05

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Solution

The fourth proportional to 12,751.26, 18,998.73 and 12,035.05 is: 17,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,751.26 : 18,998.73 = 12,035.05 : x
  2. Step 2: Convert to fraction form
    12,751.26/18,998.73 = 12,035.05/x
  3. Step 3: Cross multiply
    12,751.26x = 18,998.73 × 12,035.05
  4. Step 4: Simplify right side
    12,751.26x = 228,650,665.49
  5. Step 5: Solve for x
    x = 228,650,665.49/12,751.26
  6. Step 6: Final answer
    x = 17,931.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.