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Finding the Fourth Proportional to 27,220.70, 40,843.20 and 9,703.10

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Solution

The fourth proportional to 27,220.70, 40,843.20 and 9,703.10 is: 14,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,220.70 : 40,843.20 = 9,703.10 : x
  2. Step 2: Convert to fraction form
    27,220.70/40,843.20 = 9,703.10/x
  3. Step 3: Cross multiply
    27,220.70x = 40,843.20 × 9,703.10
  4. Step 4: Simplify right side
    27,220.70x = 396,305,653.92
  5. Step 5: Solve for x
    x = 396,305,653.92/27,220.70
  6. Step 6: Final answer
    x = 14,558.98

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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.