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Finding the Fourth Proportional to 68,603.34, 94,673.14 and 39,930.14

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Solution

The fourth proportional to 68,603.34, 94,673.14 and 39,930.14 is: 55,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,603.34 : 94,673.14 = 39,930.14 : x
  2. Step 2: Convert to fraction form
    68,603.34/94,673.14 = 39,930.14/x
  3. Step 3: Cross multiply
    68,603.34x = 94,673.14 × 39,930.14
  4. Step 4: Simplify right side
    68,603.34x = 3,780,311,734.44
  5. Step 5: Solve for x
    x = 3,780,311,734.44/68,603.34
  6. Step 6: Final answer
    x = 55,103.90

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1.5x scale

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.