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Finding the Fourth Proportional to 8,379.88, 11,563.92 and 4,602.93

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Solution

The fourth proportional to 8,379.88, 11,563.92 and 4,602.93 is: 6,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.88 : 11,563.92 = 4,602.93 : x
  2. Step 2: Convert to fraction form
    8,379.88/11,563.92 = 4,602.93/x
  3. Step 3: Cross multiply
    8,379.88x = 11,563.92 × 4,602.93
  4. Step 4: Simplify right side
    8,379.88x = 53,227,914.29
  5. Step 5: Solve for x
    x = 53,227,914.29/8,379.88
  6. Step 6: Final answer
    x = 6,351.87

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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.