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Finding the Fourth Proportional to 34,711.76, 47,902.48 and 18,796.48

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Solution

The fourth proportional to 34,711.76, 47,902.48 and 18,796.48 is: 25,939.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,711.76 : 47,902.48 = 18,796.48 : x
  2. Step 2: Convert to fraction form
    34,711.76/47,902.48 = 18,796.48/x
  3. Step 3: Cross multiply
    34,711.76x = 47,902.48 × 18,796.48
  4. Step 4: Simplify right side
    34,711.76x = 900,398,007.27
  5. Step 5: Solve for x
    x = 900,398,007.27/34,711.76
  6. Step 6: Final answer
    x = 25,939.28

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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.