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Finding the Fourth Proportional to 28,046.70, 42,070.05 and 25,227.90

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Solution

The fourth proportional to 28,046.70, 42,070.05 and 25,227.90 is: 37,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.70 : 42,070.05 = 25,227.90 : x
  2. Step 2: Convert to fraction form
    28,046.70/42,070.05 = 25,227.90/x
  3. Step 3: Cross multiply
    28,046.70x = 42,070.05 × 25,227.90
  4. Step 4: Simplify right side
    28,046.70x = 1,061,339,014.40
  5. Step 5: Solve for x
    x = 1,061,339,014.40/28,046.70
  6. Step 6: Final answer
    x = 37,841.85

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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.