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Finding the Fourth Proportional to 68,492.60, 102,758.10 and 33,433.40

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Solution

The fourth proportional to 68,492.60, 102,758.10 and 33,433.40 is: 50,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,492.60 : 102,758.10 = 33,433.40 : x
  2. Step 2: Convert to fraction form
    68,492.60/102,758.10 = 33,433.40/x
  3. Step 3: Cross multiply
    68,492.60x = 102,758.10 × 33,433.40
  4. Step 4: Simplify right side
    68,492.60x = 3,435,552,660.54
  5. Step 5: Solve for x
    x = 3,435,552,660.54/68,492.60
  6. Step 6: Final answer
    x = 50,159.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.