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Finding the Fourth Proportional to 68,708.82, 94,816.24 and 38,495.96

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Solution

The fourth proportional to 68,708.82, 94,816.24 and 38,495.96 is: 53,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,708.82 : 94,816.24 = 38,495.96 : x
  2. Step 2: Convert to fraction form
    68,708.82/94,816.24 = 38,495.96/x
  3. Step 3: Cross multiply
    68,708.82x = 94,816.24 × 38,495.96
  4. Step 4: Simplify right side
    68,708.82x = 3,650,041,967.63
  5. Step 5: Solve for x
    x = 3,650,041,967.63/68,708.82
  6. Step 6: Final answer
    x = 53,123.34

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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.