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Finding the Fourth Proportional to 12,494.25, 18,742.46 and 3,260.25

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Solution

The fourth proportional to 12,494.25, 18,742.46 and 3,260.25 is: 4,890.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.25 : 18,742.46 = 3,260.25 : x
  2. Step 2: Convert to fraction form
    12,494.25/18,742.46 = 3,260.25/x
  3. Step 3: Cross multiply
    12,494.25x = 18,742.46 × 3,260.25
  4. Step 4: Simplify right side
    12,494.25x = 61,105,088.91
  5. Step 5: Solve for x
    x = 61,105,088.91/12,494.25
  6. Step 6: Final answer
    x = 4,890.66

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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.