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Finding the Fourth Proportional to 27,245.48, 40,868.35 and 8,270.28

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Solution

The fourth proportional to 27,245.48, 40,868.35 and 8,270.28 is: 12,405.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,245.48 : 40,868.35 = 8,270.28 : x
  2. Step 2: Convert to fraction form
    27,245.48/40,868.35 = 8,270.28/x
  3. Step 3: Cross multiply
    27,245.48x = 40,868.35 × 8,270.28
  4. Step 4: Simplify right side
    27,245.48x = 337,992,596.91
  5. Step 5: Solve for x
    x = 337,992,596.91/27,245.48
  6. Step 6: Final answer
    x = 12,405.46

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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.