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Finding the Fourth Proportional to 45,447.84, 68,081 and 36,103.68

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Solution

The fourth proportional to 45,447.84, 68,081 and 36,103.68 is: 54,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,447.84 : 68,081 = 36,103.68 : x
  2. Step 2: Convert to fraction form
    45,447.84/68,081 = 36,103.68/x
  3. Step 3: Cross multiply
    45,447.84x = 68,081 × 36,103.68
  4. Step 4: Simplify right side
    45,447.84x = 2,457,974,638.08
  5. Step 5: Solve for x
    x = 2,457,974,638.08/45,447.84
  6. Step 6: Final answer
    x = 54,083.42

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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.