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Finding the Fourth Proportional to 28,692.70, 43,026.09 and 10,225.18

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Solution

The fourth proportional to 28,692.70, 43,026.09 and 10,225.18 is: 15,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.70 : 43,026.09 = 10,225.18 : x
  2. Step 2: Convert to fraction form
    28,692.70/43,026.09 = 10,225.18/x
  3. Step 3: Cross multiply
    28,692.70x = 43,026.09 × 10,225.18
  4. Step 4: Simplify right side
    28,692.70x = 439,949,514.95
  5. Step 5: Solve for x
    x = 439,949,514.95/28,692.70
  6. Step 6: Final answer
    x = 15,333.15

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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.