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Finding the Fourth Proportional to 18,596.33, 25,628.32 and 12,628.25

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Solution

The fourth proportional to 18,596.33, 25,628.32 and 12,628.25 is: 17,403.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.33 : 25,628.32 = 12,628.25 : x
  2. Step 2: Convert to fraction form
    18,596.33/25,628.32 = 12,628.25/x
  3. Step 3: Cross multiply
    18,596.33x = 25,628.32 × 12,628.25
  4. Step 4: Simplify right side
    18,596.33x = 323,640,832.04
  5. Step 5: Solve for x
    x = 323,640,832.04/18,596.33
  6. Step 6: Final answer
    x = 17,403.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.