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Finding the Fourth Proportional to 68,602.60, 94,675.98 and 38,391.40

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Solution

The fourth proportional to 68,602.60, 94,675.98 and 38,391.40 is: 52,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,602.60 : 94,675.98 = 38,391.40 : x
  2. Step 2: Convert to fraction form
    68,602.60/94,675.98 = 38,391.40/x
  3. Step 3: Cross multiply
    68,602.60x = 94,675.98 × 38,391.40
  4. Step 4: Simplify right side
    68,602.60x = 3,634,743,418.57
  5. Step 5: Solve for x
    x = 3,634,743,418.57/68,602.60
  6. Step 6: Final answer
    x = 52,982.59

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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.