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Finding the Fourth Proportional to 16,553.70, 24,830.55 and 13,273.20

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Solution

The fourth proportional to 16,553.70, 24,830.55 and 13,273.20 is: 19,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,553.70 : 24,830.55 = 13,273.20 : x
  2. Step 2: Convert to fraction form
    16,553.70/24,830.55 = 13,273.20/x
  3. Step 3: Cross multiply
    16,553.70x = 24,830.55 × 13,273.20
  4. Step 4: Simplify right side
    16,553.70x = 329,580,856.26
  5. Step 5: Solve for x
    x = 329,580,856.26/16,553.70
  6. Step 6: Final answer
    x = 19,909.80

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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.