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Finding the Fourth Proportional to 27,180.96, 40,745.52 and 8,700.96

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Solution

The fourth proportional to 27,180.96, 40,745.52 and 8,700.96 is: 13,043.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,180.96 : 40,745.52 = 8,700.96 : x
  2. Step 2: Convert to fraction form
    27,180.96/40,745.52 = 8,700.96/x
  3. Step 3: Cross multiply
    27,180.96x = 40,745.52 × 8,700.96
  4. Step 4: Simplify right side
    27,180.96x = 354,525,139.70
  5. Step 5: Solve for x
    x = 354,525,139.70/27,180.96
  6. Step 6: Final answer
    x = 13,043.14

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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.