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Finding the Fourth Proportional to 68,708.69, 94,828.02 and 38,496.06

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Solution

The fourth proportional to 68,708.69, 94,828.02 and 38,496.06 is: 53,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,708.69 : 94,828.02 = 38,496.06 : x
  2. Step 2: Convert to fraction form
    68,708.69/94,828.02 = 38,496.06/x
  3. Step 3: Cross multiply
    68,708.69x = 94,828.02 × 38,496.06
  4. Step 4: Simplify right side
    68,708.69x = 3,650,505,253.22
  5. Step 5: Solve for x
    x = 3,650,505,253.22/68,708.69
  6. Step 6: Final answer
    x = 53,130.18

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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.