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Finding the Fourth Proportional to 54,818.70, 75,649.80 and 29,668.20

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Solution

The fourth proportional to 54,818.70, 75,649.80 and 29,668.20 is: 40,942.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,818.70 : 75,649.80 = 29,668.20 : x
  2. Step 2: Convert to fraction form
    54,818.70/75,649.80 = 29,668.20/x
  3. Step 3: Cross multiply
    54,818.70x = 75,649.80 × 29,668.20
  4. Step 4: Simplify right side
    54,818.70x = 2,244,393,396.36
  5. Step 5: Solve for x
    x = 2,244,393,396.36/54,818.70
  6. Step 6: Final answer
    x = 40,942.11

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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.