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Finding the Fourth Proportional to 28,197.58, 42,250.23 and 17,070.54

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Solution

The fourth proportional to 28,197.58, 42,250.23 and 17,070.54 is: 25,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.58 : 42,250.23 = 17,070.54 : x
  2. Step 2: Convert to fraction form
    28,197.58/42,250.23 = 17,070.54/x
  3. Step 3: Cross multiply
    28,197.58x = 42,250.23 × 17,070.54
  4. Step 4: Simplify right side
    28,197.58x = 721,234,399.66
  5. Step 5: Solve for x
    x = 721,234,399.66/28,197.58
  6. Step 6: Final answer
    x = 25,577.88

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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.