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Finding the Fourth Proportional to 27,208.81, 40,797.90 and 9,431.14

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Solution

The fourth proportional to 27,208.81, 40,797.90 and 9,431.14 is: 14,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,208.81 : 40,797.90 = 9,431.14 : x
  2. Step 2: Convert to fraction form
    27,208.81/40,797.90 = 9,431.14/x
  3. Step 3: Cross multiply
    27,208.81x = 40,797.90 × 9,431.14
  4. Step 4: Simplify right side
    27,208.81x = 384,770,569.24
  5. Step 5: Solve for x
    x = 384,770,569.24/27,208.81
  6. Step 6: Final answer
    x = 14,141.40

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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.