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Finding the Fourth Proportional to 4,333.92, 5,978.40 and 2,934.24

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Solution

The fourth proportional to 4,333.92, 5,978.40 and 2,934.24 is: 4,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,333.92 : 5,978.40 = 2,934.24 : x
  2. Step 2: Convert to fraction form
    4,333.92/5,978.40 = 2,934.24/x
  3. Step 3: Cross multiply
    4,333.92x = 5,978.40 × 2,934.24
  4. Step 4: Simplify right side
    4,333.92x = 17,542,060.42
  5. Step 5: Solve for x
    x = 17,542,060.42/4,333.92
  6. Step 6: Final answer
    x = 4,047.62

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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.