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Finding the Fourth Proportional to 7,234.35, 9,983.36 and 4,090.55

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Solution

The fourth proportional to 7,234.35, 9,983.36 and 4,090.55 is: 5,644.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,234.35 : 9,983.36 = 4,090.55 : x
  2. Step 2: Convert to fraction form
    7,234.35/9,983.36 = 4,090.55/x
  3. Step 3: Cross multiply
    7,234.35x = 9,983.36 × 4,090.55
  4. Step 4: Simplify right side
    7,234.35x = 40,837,412.80
  5. Step 5: Solve for x
    x = 40,837,412.80/7,234.35
  6. Step 6: Final answer
    x = 5,644.93

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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.