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Finding the Fourth Proportional to 18,295.88, 25,257.04 and 12,256.52

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Solution

The fourth proportional to 18,295.88, 25,257.04 and 12,256.52 is: 16,919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.88 : 25,257.04 = 12,256.52 : x
  2. Step 2: Convert to fraction form
    18,295.88/25,257.04 = 12,256.52/x
  3. Step 3: Cross multiply
    18,295.88x = 25,257.04 × 12,256.52
  4. Step 4: Simplify right side
    18,295.88x = 309,563,415.90
  5. Step 5: Solve for x
    x = 309,563,415.90/18,295.88
  6. Step 6: Final answer
    x = 16,919.84

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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.