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Finding the Fourth Proportional to 27,431.54, 41,143.08 and 8,709.14

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Solution

The fourth proportional to 27,431.54, 41,143.08 and 8,709.14 is: 13,062.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.54 : 41,143.08 = 8,709.14 : x
  2. Step 2: Convert to fraction form
    27,431.54/41,143.08 = 8,709.14/x
  3. Step 3: Cross multiply
    27,431.54x = 41,143.08 × 8,709.14
  4. Step 4: Simplify right side
    27,431.54x = 358,320,638.04
  5. Step 5: Solve for x
    x = 358,320,638.04/27,431.54
  6. Step 6: Final answer
    x = 13,062.36

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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.