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Finding the Fourth Proportional to 40,461.44, 60,692.15 and 12,759.44

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Solution

The fourth proportional to 40,461.44, 60,692.15 and 12,759.44 is: 19,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,461.44 : 60,692.15 = 12,759.44 : x
  2. Step 2: Convert to fraction form
    40,461.44/60,692.15 = 12,759.44/x
  3. Step 3: Cross multiply
    40,461.44x = 60,692.15 × 12,759.44
  4. Step 4: Simplify right side
    40,461.44x = 774,397,846.40
  5. Step 5: Solve for x
    x = 774,397,846.40/40,461.44
  6. Step 6: Final answer
    x = 19,139.16

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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.