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Finding the Fourth Proportional to 68,709.03, 94,828.47 and 38,496.39

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Solution

The fourth proportional to 68,709.03, 94,828.47 and 38,496.39 is: 53,130.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,709.03 : 94,828.47 = 38,496.39 : x
  2. Step 2: Convert to fraction form
    68,709.03/94,828.47 = 38,496.39/x
  3. Step 3: Cross multiply
    68,709.03x = 94,828.47 × 38,496.39
  4. Step 4: Simplify right side
    68,709.03x = 3,650,553,764.22
  5. Step 5: Solve for x
    x = 3,650,553,764.22/68,709.03
  6. Step 6: Final answer
    x = 53,130.63

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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.