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Finding the Fourth Proportional to 4,331.90, 5,978.01 and 2,342.43

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Solution

The fourth proportional to 4,331.90, 5,978.01 and 2,342.43 is: 3,232.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,331.90 : 5,978.01 = 2,342.43 : x
  2. Step 2: Convert to fraction form
    4,331.90/5,978.01 = 2,342.43/x
  3. Step 3: Cross multiply
    4,331.90x = 5,978.01 × 2,342.43
  4. Step 4: Simplify right side
    4,331.90x = 14,003,084.91
  5. Step 5: Solve for x
    x = 14,003,084.91/4,331.90
  6. Step 6: Final answer
    x = 3,232.55

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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.