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Finding the Fourth Proportional to 12,059.98, 18,075.39 and 6,213.40

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Solution

The fourth proportional to 12,059.98, 18,075.39 and 6,213.40 is: 9,312.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,059.98 : 18,075.39 = 6,213.40 : x
  2. Step 2: Convert to fraction form
    12,059.98/18,075.39 = 6,213.40/x
  3. Step 3: Cross multiply
    12,059.98x = 18,075.39 × 6,213.40
  4. Step 4: Simplify right side
    12,059.98x = 112,309,628.23
  5. Step 5: Solve for x
    x = 112,309,628.23/12,059.98
  6. Step 6: Final answer
    x = 9,312.59

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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.