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Finding the Fourth Proportional to 27,203.99, 40,801.28 and 7,213.61

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Solution

The fourth proportional to 27,203.99, 40,801.28 and 7,213.61 is: 10,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,203.99 : 40,801.28 = 7,213.61 : x
  2. Step 2: Convert to fraction form
    27,203.99/40,801.28 = 7,213.61/x
  3. Step 3: Cross multiply
    27,203.99x = 40,801.28 × 7,213.61
  4. Step 4: Simplify right side
    27,203.99x = 294,324,281.35
  5. Step 5: Solve for x
    x = 294,324,281.35/27,203.99
  6. Step 6: Final answer
    x = 10,819.16

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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.