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Finding the Fourth Proportional to 45,665.80, 68,613.90 and 29,033.80

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Solution

The fourth proportional to 45,665.80, 68,613.90 and 29,033.80 is: 43,623.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,665.80 : 68,613.90 = 29,033.80 : x
  2. Step 2: Convert to fraction form
    45,665.80/68,613.90 = 29,033.80/x
  3. Step 3: Cross multiply
    45,665.80x = 68,613.90 × 29,033.80
  4. Step 4: Simplify right side
    45,665.80x = 1,992,122,249.82
  5. Step 5: Solve for x
    x = 1,992,122,249.82/45,665.80
  6. Step 6: Final answer
    x = 43,623.94

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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.