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Finding the Fourth Proportional to 28,793.90, 43,196.91 and 16,319.90

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Solution

The fourth proportional to 28,793.90, 43,196.91 and 16,319.90 is: 24,483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.90 : 43,196.91 = 16,319.90 : x
  2. Step 2: Convert to fraction form
    28,793.90/43,196.91 = 16,319.90/x
  3. Step 3: Cross multiply
    28,793.90x = 43,196.91 × 16,319.90
  4. Step 4: Simplify right side
    28,793.90x = 704,969,251.51
  5. Step 5: Solve for x
    x = 704,969,251.51/28,793.90
  6. Step 6: Final answer
    x = 24,483.28

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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.