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Finding the Fourth Proportional to 8,322.99, 11,484.77 and 4,787.34

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Solution

The fourth proportional to 8,322.99, 11,484.77 and 4,787.34 is: 6,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.99 : 11,484.77 = 4,787.34 : x
  2. Step 2: Convert to fraction form
    8,322.99/11,484.77 = 4,787.34/x
  3. Step 3: Cross multiply
    8,322.99x = 11,484.77 × 4,787.34
  4. Step 4: Simplify right side
    8,322.99x = 54,981,474.88
  5. Step 5: Solve for x
    x = 54,981,474.88/8,322.99
  6. Step 6: Final answer
    x = 6,605.98

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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.