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Finding the Fourth Proportional to 40,605.20, 60,907.80 and 26,608.40

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Solution

The fourth proportional to 40,605.20, 60,907.80 and 26,608.40 is: 39,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,605.20 : 60,907.80 = 26,608.40 : x
  2. Step 2: Convert to fraction form
    40,605.20/60,907.80 = 26,608.40/x
  3. Step 3: Cross multiply
    40,605.20x = 60,907.80 × 26,608.40
  4. Step 4: Simplify right side
    40,605.20x = 1,620,659,105.52
  5. Step 5: Solve for x
    x = 1,620,659,105.52/40,605.20
  6. Step 6: Final answer
    x = 39,912.60

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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.