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Finding the Fourth Proportional to 5,321.54, 7,333.26 and 5,190.32

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Solution

The fourth proportional to 5,321.54, 7,333.26 and 5,190.32 is: 7,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.54 : 7,333.26 = 5,190.32 : x
  2. Step 2: Convert to fraction form
    5,321.54/7,333.26 = 5,190.32/x
  3. Step 3: Cross multiply
    5,321.54x = 7,333.26 × 5,190.32
  4. Step 4: Simplify right side
    5,321.54x = 38,061,966.04
  5. Step 5: Solve for x
    x = 38,061,966.04/5,321.54
  6. Step 6: Final answer
    x = 7,152.43

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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.