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Finding the Fourth Proportional to 8,979.99, 13,472.73 and 4,600.55

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Solution

The fourth proportional to 8,979.99, 13,472.73 and 4,600.55 is: 6,902.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.99 : 13,472.73 = 4,600.55 : x
  2. Step 2: Convert to fraction form
    8,979.99/13,472.73 = 4,600.55/x
  3. Step 3: Cross multiply
    8,979.99x = 13,472.73 × 4,600.55
  4. Step 4: Simplify right side
    8,979.99x = 61,981,968.00
  5. Step 5: Solve for x
    x = 61,981,968.00/8,979.99
  6. Step 6: Final answer
    x = 6,902.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.