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Finding the Fourth Proportional to 9,791.57, 13,490.20 and 9,325.01

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Solution

The fourth proportional to 9,791.57, 13,490.20 and 9,325.01 is: 12,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,791.57 : 13,490.20 = 9,325.01 : x
  2. Step 2: Convert to fraction form
    9,791.57/13,490.20 = 9,325.01/x
  3. Step 3: Cross multiply
    9,791.57x = 13,490.20 × 9,325.01
  4. Step 4: Simplify right side
    9,791.57x = 125,796,249.90
  5. Step 5: Solve for x
    x = 125,796,249.90/9,791.57
  6. Step 6: Final answer
    x = 12,847.40

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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.