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Finding the Fourth Proportional to 12,497.75, 18,755.90 and 5,923.95

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Solution

The fourth proportional to 12,497.75, 18,755.90 and 5,923.95 is: 8,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.75 : 18,755.90 = 5,923.95 : x
  2. Step 2: Convert to fraction form
    12,497.75/18,755.90 = 5,923.95/x
  3. Step 3: Cross multiply
    12,497.75x = 18,755.90 × 5,923.95
  4. Step 4: Simplify right side
    12,497.75x = 111,108,984.19
  5. Step 5: Solve for x
    x = 111,108,984.19/12,497.75
  6. Step 6: Final answer
    x = 8,890.32

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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.