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Finding the Fourth Proportional to 8,370.90, 11,551.94 and 4,786.62

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Solution

The fourth proportional to 8,370.90, 11,551.94 and 4,786.62 is: 6,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.90 : 11,551.94 = 4,786.62 : x
  2. Step 2: Convert to fraction form
    8,370.90/11,551.94 = 4,786.62/x
  3. Step 3: Cross multiply
    8,370.90x = 11,551.94 × 4,786.62
  4. Step 4: Simplify right side
    8,370.90x = 55,294,747.04
  5. Step 5: Solve for x
    x = 55,294,747.04/8,370.90
  6. Step 6: Final answer
    x = 6,605.59

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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.