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Finding the Fourth Proportional to 66,879.22, 92,292.74 and 36,663.99

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Solution

The fourth proportional to 66,879.22, 92,292.74 and 36,663.99 is: 50,595.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,879.22 : 92,292.74 = 36,663.99 : x
  2. Step 2: Convert to fraction form
    66,879.22/92,292.74 = 36,663.99/x
  3. Step 3: Cross multiply
    66,879.22x = 92,292.74 × 36,663.99
  4. Step 4: Simplify right side
    66,879.22x = 3,383,820,143.84
  5. Step 5: Solve for x
    x = 3,383,820,143.84/66,879.22
  6. Step 6: Final answer
    x = 50,595.99

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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.