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Finding the Fourth Proportional to 19,544.40, 29,381.40 and 16,693.20

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Solution

The fourth proportional to 19,544.40, 29,381.40 and 16,693.20 is: 25,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,544.40 : 29,381.40 = 16,693.20 : x
  2. Step 2: Convert to fraction form
    19,544.40/29,381.40 = 16,693.20/x
  3. Step 3: Cross multiply
    19,544.40x = 29,381.40 × 16,693.20
  4. Step 4: Simplify right side
    19,544.40x = 490,469,586.48
  5. Step 5: Solve for x
    x = 490,469,586.48/19,544.40
  6. Step 6: Final answer
    x = 25,095.15

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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.