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Finding the Fourth Proportional to 8,562.99, 11,816.88 and 4,786.15

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Solution

The fourth proportional to 8,562.99, 11,816.88 and 4,786.15 is: 6,604.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562.99 : 11,816.88 = 4,786.15 : x
  2. Step 2: Convert to fraction form
    8,562.99/11,816.88 = 4,786.15/x
  3. Step 3: Cross multiply
    8,562.99x = 11,816.88 × 4,786.15
  4. Step 4: Simplify right side
    8,562.99x = 56,557,360.21
  5. Step 5: Solve for x
    x = 56,557,360.21/8,562.99
  6. Step 6: Final answer
    x = 6,604.86

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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.