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Finding the Fourth Proportional to 27,480.40, 41,222.92 and 8,763.10

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Solution

The fourth proportional to 27,480.40, 41,222.92 and 8,763.10 is: 13,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,480.40 : 41,222.92 = 8,763.10 : x
  2. Step 2: Convert to fraction form
    27,480.40/41,222.92 = 8,763.10/x
  3. Step 3: Cross multiply
    27,480.40x = 41,222.92 × 8,763.10
  4. Step 4: Simplify right side
    27,480.40x = 361,240,570.25
  5. Step 5: Solve for x
    x = 361,240,570.25/27,480.40
  6. Step 6: Final answer
    x = 13,145.39

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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.