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Finding the Fourth Proportional to 68,118.73, 94,002.95 and 38,310.73

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Solution

The fourth proportional to 68,118.73, 94,002.95 and 38,310.73 is: 52,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,118.73 : 94,002.95 = 38,310.73 : x
  2. Step 2: Convert to fraction form
    68,118.73/94,002.95 = 38,310.73/x
  3. Step 3: Cross multiply
    68,118.73x = 94,002.95 × 38,310.73
  4. Step 4: Simplify right side
    68,118.73x = 3,601,321,445.10
  5. Step 5: Solve for x
    x = 3,601,321,445.10/68,118.73
  6. Step 6: Final answer
    x = 52,868.30

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Half scale
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Double scale
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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.