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Finding the Fourth Proportional to 9,694.80, 13,385.16 and 7,452.54

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Solution

The fourth proportional to 9,694.80, 13,385.16 and 7,452.54 is: 10,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,694.80 : 13,385.16 = 7,452.54 : x
  2. Step 2: Convert to fraction form
    9,694.80/13,385.16 = 7,452.54/x
  3. Step 3: Cross multiply
    9,694.80x = 13,385.16 × 7,452.54
  4. Step 4: Simplify right side
    9,694.80x = 99,753,440.31
  5. Step 5: Solve for x
    x = 99,753,440.31/9,694.80
  6. Step 6: Final answer
    x = 10,289.38

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.