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Finding the Fourth Proportional to 28,059.72, 42,080.44 and 9,334.73

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Solution

The fourth proportional to 28,059.72, 42,080.44 and 9,334.73 is: 13,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,059.72 : 42,080.44 = 9,334.73 : x
  2. Step 2: Convert to fraction form
    28,059.72/42,080.44 = 9,334.73/x
  3. Step 3: Cross multiply
    28,059.72x = 42,080.44 × 9,334.73
  4. Step 4: Simplify right side
    28,059.72x = 392,809,545.68
  5. Step 5: Solve for x
    x = 392,809,545.68/28,059.72
  6. Step 6: Final answer
    x = 13,999.05

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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.