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Finding the Fourth Proportional to 8,557.68, 11,772.60 and 6,982.32

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Solution

The fourth proportional to 8,557.68, 11,772.60 and 6,982.32 is: 9,605.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.68 : 11,772.60 = 6,982.32 : x
  2. Step 2: Convert to fraction form
    8,557.68/11,772.60 = 6,982.32/x
  3. Step 3: Cross multiply
    8,557.68x = 11,772.60 × 6,982.32
  4. Step 4: Simplify right side
    8,557.68x = 82,200,060.43
  5. Step 5: Solve for x
    x = 82,200,060.43/8,557.68
  6. Step 6: Final answer
    x = 9,605.41

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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.