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Finding the Fourth Proportional to 19,404.80, 29,020.80 and 16,294.40

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Solution

The fourth proportional to 19,404.80, 29,020.80 and 16,294.40 is: 24,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,404.80 : 29,020.80 = 16,294.40 : x
  2. Step 2: Convert to fraction form
    19,404.80/29,020.80 = 16,294.40/x
  3. Step 3: Cross multiply
    19,404.80x = 29,020.80 × 16,294.40
  4. Step 4: Simplify right side
    19,404.80x = 472,876,523.52
  5. Step 5: Solve for x
    x = 472,876,523.52/19,404.80
  6. Step 6: Final answer
    x = 24,369.05

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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.