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Finding the Fourth Proportional to 19,505.31, 29,244.71 and 7,651.65

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Solution

The fourth proportional to 19,505.31, 29,244.71 and 7,651.65 is: 11,472.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.31 : 29,244.71 = 7,651.65 : x
  2. Step 2: Convert to fraction form
    19,505.31/29,244.71 = 7,651.65/x
  3. Step 3: Cross multiply
    19,505.31x = 29,244.71 × 7,651.65
  4. Step 4: Simplify right side
    19,505.31x = 223,770,247.01
  5. Step 5: Solve for x
    x = 223,770,247.01/19,505.31
  6. Step 6: Final answer
    x = 11,472.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.