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Finding the Fourth Proportional to 45,903.92, 68,854.97 and 30,208.10

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Solution

The fourth proportional to 45,903.92, 68,854.97 and 30,208.10 is: 45,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,903.92 : 68,854.97 = 30,208.10 : x
  2. Step 2: Convert to fraction form
    45,903.92/68,854.97 = 30,208.10/x
  3. Step 3: Cross multiply
    45,903.92x = 68,854.97 × 30,208.10
  4. Step 4: Simplify right side
    45,903.92x = 2,079,977,323.94
  5. Step 5: Solve for x
    x = 2,079,977,323.94/45,903.92
  6. Step 6: Final answer
    x = 45,311.54

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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.