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Finding the Fourth Proportional to 9,040.60, 13,560.90 and 5,940.20

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Solution

The fourth proportional to 9,040.60, 13,560.90 and 5,940.20 is: 8,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,040.60 : 13,560.90 = 5,940.20 : x
  2. Step 2: Convert to fraction form
    9,040.60/13,560.90 = 5,940.20/x
  3. Step 3: Cross multiply
    9,040.60x = 13,560.90 × 5,940.20
  4. Step 4: Simplify right side
    9,040.60x = 80,554,458.18
  5. Step 5: Solve for x
    x = 80,554,458.18/9,040.60
  6. Step 6: Final answer
    x = 8,910.30

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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.