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Finding the Fourth Proportional to 28,467.35, 42,700.43 and 9,493.35

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Solution

The fourth proportional to 28,467.35, 42,700.43 and 9,493.35 is: 14,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,467.35 : 42,700.43 = 9,493.35 : x
  2. Step 2: Convert to fraction form
    28,467.35/42,700.43 = 9,493.35/x
  3. Step 3: Cross multiply
    28,467.35x = 42,700.43 × 9,493.35
  4. Step 4: Simplify right side
    28,467.35x = 405,370,230.94
  5. Step 5: Solve for x
    x = 405,370,230.94/28,467.35
  6. Step 6: Final answer
    x = 14,239.83

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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.