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Finding the Fourth Proportional to 19,491.72, 29,230.33 and 7,008.34

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Solution

The fourth proportional to 19,491.72, 29,230.33 and 7,008.34 is: 10,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,491.72 : 29,230.33 = 7,008.34 : x
  2. Step 2: Convert to fraction form
    19,491.72/29,230.33 = 7,008.34/x
  3. Step 3: Cross multiply
    19,491.72x = 29,230.33 × 7,008.34
  4. Step 4: Simplify right side
    19,491.72x = 204,856,090.95
  5. Step 5: Solve for x
    x = 204,856,090.95/19,491.72
  6. Step 6: Final answer
    x = 10,509.90

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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.