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Finding the Fourth Proportional to 68,903.28, 103,450.68 and 35,647.92

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Solution

The fourth proportional to 68,903.28, 103,450.68 and 35,647.92 is: 53,521.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,903.28 : 103,450.68 = 35,647.92 : x
  2. Step 2: Convert to fraction form
    68,903.28/103,450.68 = 35,647.92/x
  3. Step 3: Cross multiply
    68,903.28x = 103,450.68 × 35,647.92
  4. Step 4: Simplify right side
    68,903.28x = 3,687,801,564.59
  5. Step 5: Solve for x
    x = 3,687,801,564.59/68,903.28
  6. Step 6: Final answer
    x = 53,521.42

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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.