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Finding the Fourth Proportional to 68,693.40, 94,800.46 and 38,476.96

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Solution

The fourth proportional to 68,693.40, 94,800.46 and 38,476.96 is: 53,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,693.40 : 94,800.46 = 38,476.96 : x
  2. Step 2: Convert to fraction form
    68,693.40/94,800.46 = 38,476.96/x
  3. Step 3: Cross multiply
    68,693.40x = 94,800.46 × 38,476.96
  4. Step 4: Simplify right side
    68,693.40x = 3,647,633,507.40
  5. Step 5: Solve for x
    x = 3,647,633,507.40/68,693.40
  6. Step 6: Final answer
    x = 53,100.20

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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.