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Finding the Fourth Proportional to 27,201.84, 40,800.82 and 7,210.88

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Solution

The fourth proportional to 27,201.84, 40,800.82 and 7,210.88 is: 10,815.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,201.84 : 40,800.82 = 7,210.88 : x
  2. Step 2: Convert to fraction form
    27,201.84/40,800.82 = 7,210.88/x
  3. Step 3: Cross multiply
    27,201.84x = 40,800.82 × 7,210.88
  4. Step 4: Simplify right side
    27,201.84x = 294,209,816.92
  5. Step 5: Solve for x
    x = 294,209,816.92/27,201.84
  6. Step 6: Final answer
    x = 10,815.81

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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.