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Finding the Fourth Proportional to 27,039.88, 40,563.72 and 8,321.52

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Solution

The fourth proportional to 27,039.88, 40,563.72 and 8,321.52 is: 12,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,039.88 : 40,563.72 = 8,321.52 : x
  2. Step 2: Convert to fraction form
    27,039.88/40,563.72 = 8,321.52/x
  3. Step 3: Cross multiply
    27,039.88x = 40,563.72 × 8,321.52
  4. Step 4: Simplify right side
    27,039.88x = 337,551,807.25
  5. Step 5: Solve for x
    x = 337,551,807.25/27,039.88
  6. Step 6: Final answer
    x = 12,483.48

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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.