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Finding the Fourth Proportional to 9,340.50, 13,976.15 and 7,485.99

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Solution

The fourth proportional to 9,340.50, 13,976.15 and 7,485.99 is: 11,201.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,340.50 : 13,976.15 = 7,485.99 : x
  2. Step 2: Convert to fraction form
    9,340.50/13,976.15 = 7,485.99/x
  3. Step 3: Cross multiply
    9,340.50x = 13,976.15 × 7,485.99
  4. Step 4: Simplify right side
    9,340.50x = 104,625,229.30
  5. Step 5: Solve for x
    x = 104,625,229.30/9,340.50
  6. Step 6: Final answer
    x = 11,201.24

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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.