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Finding the Fourth Proportional to 68,873.22, 95,037.74 and 38,661.87

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Solution

The fourth proportional to 68,873.22, 95,037.74 and 38,661.87 is: 53,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,873.22 : 95,037.74 = 38,661.87 : x
  2. Step 2: Convert to fraction form
    68,873.22/95,037.74 = 38,661.87/x
  3. Step 3: Cross multiply
    68,873.22x = 95,037.74 × 38,661.87
  4. Step 4: Simplify right side
    68,873.22x = 3,674,336,748.97
  5. Step 5: Solve for x
    x = 3,674,336,748.97/68,873.22
  6. Step 6: Final answer
    x = 53,349.28

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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.