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Finding the Fourth Proportional to 6,755.42, 9,325.80 and 5,239.55

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Solution

The fourth proportional to 6,755.42, 9,325.80 and 5,239.55 is: 7,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,755.42 : 9,325.80 = 5,239.55 : x
  2. Step 2: Convert to fraction form
    6,755.42/9,325.80 = 5,239.55/x
  3. Step 3: Cross multiply
    6,755.42x = 9,325.80 × 5,239.55
  4. Step 4: Simplify right side
    6,755.42x = 48,863,018.70
  5. Step 5: Solve for x
    x = 48,863,018.70/6,755.42
  6. Step 6: Final answer
    x = 7,233.16

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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.