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Finding the Fourth Proportional to 8,260.80, 11,404.26 and 6,368.22

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Solution

The fourth proportional to 8,260.80, 11,404.26 and 6,368.22 is: 8,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.80 : 11,404.26 = 6,368.22 : x
  2. Step 2: Convert to fraction form
    8,260.80/11,404.26 = 6,368.22/x
  3. Step 3: Cross multiply
    8,260.80x = 11,404.26 × 6,368.22
  4. Step 4: Simplify right side
    8,260.80x = 72,624,836.62
  5. Step 5: Solve for x
    x = 72,624,836.62/8,260.80
  6. Step 6: Final answer
    x = 8,791.50

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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.