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Finding the Fourth Proportional to 45,793.40, 68,733.30 and 28,297.40

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Solution

The fourth proportional to 45,793.40, 68,733.30 and 28,297.40 is: 42,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,793.40 : 68,733.30 = 28,297.40 : x
  2. Step 2: Convert to fraction form
    45,793.40/68,733.30 = 28,297.40/x
  3. Step 3: Cross multiply
    45,793.40x = 68,733.30 × 28,297.40
  4. Step 4: Simplify right side
    45,793.40x = 1,944,973,683.42
  5. Step 5: Solve for x
    x = 1,944,973,683.42/45,793.40
  6. Step 6: Final answer
    x = 42,472.79

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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.