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Finding the Fourth Proportional to 19,609.70, 29,427.15 and 10,850.90

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Solution

The fourth proportional to 19,609.70, 29,427.15 and 10,850.90 is: 16,283.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,609.70 : 29,427.15 = 10,850.90 : x
  2. Step 2: Convert to fraction form
    19,609.70/29,427.15 = 10,850.90/x
  3. Step 3: Cross multiply
    19,609.70x = 29,427.15 × 10,850.90
  4. Step 4: Simplify right side
    19,609.70x = 319,311,061.94
  5. Step 5: Solve for x
    x = 319,311,061.94/19,609.70
  6. Step 6: Final answer
    x = 16,283.32

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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.