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Finding the Fourth Proportional to 9,079.48, 13,609.54 and 5,175.48

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Solution

The fourth proportional to 9,079.48, 13,609.54 and 5,175.48 is: 7,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079.48 : 13,609.54 = 5,175.48 : x
  2. Step 2: Convert to fraction form
    9,079.48/13,609.54 = 5,175.48/x
  3. Step 3: Cross multiply
    9,079.48x = 13,609.54 × 5,175.48
  4. Step 4: Simplify right side
    9,079.48x = 70,435,902.08
  5. Step 5: Solve for x
    x = 70,435,902.08/9,079.48
  6. Step 6: Final answer
    x = 7,757.70

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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.