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Finding the Fourth Proportional to 12,584.86, 18,877.32 and 3,350.86

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Solution

The fourth proportional to 12,584.86, 18,877.32 and 3,350.86 is: 5,026.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,584.86 : 18,877.32 = 3,350.86 : x
  2. Step 2: Convert to fraction form
    12,584.86/18,877.32 = 3,350.86/x
  3. Step 3: Cross multiply
    12,584.86x = 18,877.32 × 3,350.86
  4. Step 4: Simplify right side
    12,584.86x = 63,255,256.50
  5. Step 5: Solve for x
    x = 63,255,256.50/12,584.86
  6. Step 6: Final answer
    x = 5,026.30

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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.