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Finding the Fourth Proportional to 65,126.99, 89,879.04 and 36,446.41

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Solution

The fourth proportional to 65,126.99, 89,879.04 and 36,446.41 is: 50,298.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,126.99 : 89,879.04 = 36,446.41 : x
  2. Step 2: Convert to fraction form
    65,126.99/89,879.04 = 36,446.41/x
  3. Step 3: Cross multiply
    65,126.99x = 89,879.04 × 36,446.41
  4. Step 4: Simplify right side
    65,126.99x = 3,275,768,454.60
  5. Step 5: Solve for x
    x = 3,275,768,454.60/65,126.99
  6. Step 6: Final answer
    x = 50,298.17

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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.