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Finding the Fourth Proportional to 40,593.90, 60,900.45 and 12,891.90

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Solution

The fourth proportional to 40,593.90, 60,900.45 and 12,891.90 is: 19,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,593.90 : 60,900.45 = 12,891.90 : x
  2. Step 2: Convert to fraction form
    40,593.90/60,900.45 = 12,891.90/x
  3. Step 3: Cross multiply
    40,593.90x = 60,900.45 × 12,891.90
  4. Step 4: Simplify right side
    40,593.90x = 785,122,511.36
  5. Step 5: Solve for x
    x = 785,122,511.36/40,593.90
  6. Step 6: Final answer
    x = 19,340.90

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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.