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Finding the Fourth Proportional to 47,299.92, 65,274.40 and 25,789.49

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Solution

The fourth proportional to 47,299.92, 65,274.40 and 25,789.49 is: 35,589.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,299.92 : 65,274.40 = 25,789.49 : x
  2. Step 2: Convert to fraction form
    47,299.92/65,274.40 = 25,789.49/x
  3. Step 3: Cross multiply
    47,299.92x = 65,274.40 × 25,789.49
  4. Step 4: Simplify right side
    47,299.92x = 1,683,393,803.87
  5. Step 5: Solve for x
    x = 1,683,393,803.87/47,299.92
  6. Step 6: Final answer
    x = 35,589.78

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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.