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Finding the Fourth Proportional to 8,581.71, 11,842.72 and 4,804.86

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Solution

The fourth proportional to 8,581.71, 11,842.72 and 4,804.86 is: 6,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.71 : 11,842.72 = 4,804.86 : x
  2. Step 2: Convert to fraction form
    8,581.71/11,842.72 = 4,804.86/x
  3. Step 3: Cross multiply
    8,581.71x = 11,842.72 × 4,804.86
  4. Step 4: Simplify right side
    8,581.71x = 56,902,611.62
  5. Step 5: Solve for x
    x = 56,902,611.62/8,581.71
  6. Step 6: Final answer
    x = 6,630.68

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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.