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Finding the Fourth Proportional to 11,878.63, 17,809.54 and 5,951.30

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Solution

The fourth proportional to 11,878.63, 17,809.54 and 5,951.30 is: 8,922.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.63 : 17,809.54 = 5,951.30 : x
  2. Step 2: Convert to fraction form
    11,878.63/17,809.54 = 5,951.30/x
  3. Step 3: Cross multiply
    11,878.63x = 17,809.54 × 5,951.30
  4. Step 4: Simplify right side
    11,878.63x = 105,989,811.48
  5. Step 5: Solve for x
    x = 105,989,811.48/11,878.63
  6. Step 6: Final answer
    x = 8,922.73

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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.