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Finding the Fourth Proportional to 8,553.87, 11,799.68 and 6,191.91

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Solution

The fourth proportional to 8,553.87, 11,799.68 and 6,191.91 is: 8,541.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.87 : 11,799.68 = 6,191.91 : x
  2. Step 2: Convert to fraction form
    8,553.87/11,799.68 = 6,191.91/x
  3. Step 3: Cross multiply
    8,553.87x = 11,799.68 × 6,191.91
  4. Step 4: Simplify right side
    8,553.87x = 73,062,525.63
  5. Step 5: Solve for x
    x = 73,062,525.63/8,553.87
  6. Step 6: Final answer
    x = 8,541.46

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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.