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Finding the Fourth Proportional to 12,255.07, 18,352.99 and 6,974.08

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Solution

The fourth proportional to 12,255.07, 18,352.99 and 6,974.08 is: 10,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.07 : 18,352.99 = 6,974.08 : x
  2. Step 2: Convert to fraction form
    12,255.07/18,352.99 = 6,974.08/x
  3. Step 3: Cross multiply
    12,255.07x = 18,352.99 × 6,974.08
  4. Step 4: Simplify right side
    12,255.07x = 127,995,220.50
  5. Step 5: Solve for x
    x = 127,995,220.50/12,255.07
  6. Step 6: Final answer
    x = 10,444.27

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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.