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Finding the Fourth Proportional to 19,411.65, 29,073.74 and 11,604.15

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Solution

The fourth proportional to 19,411.65, 29,073.74 and 11,604.15 is: 17,380.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411.65 : 29,073.74 = 11,604.15 : x
  2. Step 2: Convert to fraction form
    19,411.65/29,073.74 = 11,604.15/x
  3. Step 3: Cross multiply
    19,411.65x = 29,073.74 × 11,604.15
  4. Step 4: Simplify right side
    19,411.65x = 337,375,982.00
  5. Step 5: Solve for x
    x = 337,375,982.00/19,411.65
  6. Step 6: Final answer
    x = 17,380.08

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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.