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Finding the Fourth Proportional to 5,353.25, 7,376.31 and 4,553.78

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Solution

The fourth proportional to 5,353.25, 7,376.31 and 4,553.78 is: 6,274.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.25 : 7,376.31 = 4,553.78 : x
  2. Step 2: Convert to fraction form
    5,353.25/7,376.31 = 4,553.78/x
  3. Step 3: Cross multiply
    5,353.25x = 7,376.31 × 4,553.78
  4. Step 4: Simplify right side
    5,353.25x = 33,590,056.07
  5. Step 5: Solve for x
    x = 33,590,056.07/5,353.25
  6. Step 6: Final answer
    x = 6,274.71

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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.