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Finding the Fourth Proportional to 8,609.75, 11,881.46 and 4,883.75

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Solution

The fourth proportional to 8,609.75, 11,881.46 and 4,883.75 is: 6,739.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.75 : 11,881.46 = 4,883.75 : x
  2. Step 2: Convert to fraction form
    8,609.75/11,881.46 = 4,883.75/x
  3. Step 3: Cross multiply
    8,609.75x = 11,881.46 × 4,883.75
  4. Step 4: Simplify right side
    8,609.75x = 58,026,080.28
  5. Step 5: Solve for x
    x = 58,026,080.28/8,609.75
  6. Step 6: Final answer
    x = 6,739.58

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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.