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Finding the Fourth Proportional to 28,042.60, 42,006.30 and 22,858.60

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Solution

The fourth proportional to 28,042.60, 42,006.30 and 22,858.60 is: 34,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.60 : 42,006.30 = 22,858.60 : x
  2. Step 2: Convert to fraction form
    28,042.60/42,006.30 = 22,858.60/x
  3. Step 3: Cross multiply
    28,042.60x = 42,006.30 × 22,858.60
  4. Step 4: Simplify right side
    28,042.60x = 960,205,209.18
  5. Step 5: Solve for x
    x = 960,205,209.18/28,042.60
  6. Step 6: Final answer
    x = 34,240.95

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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.