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Finding the Fourth Proportional to 12,551.99, 18,816.80 and 4,766.27

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Solution

The fourth proportional to 12,551.99, 18,816.80 and 4,766.27 is: 7,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.99 : 18,816.80 = 4,766.27 : x
  2. Step 2: Convert to fraction form
    12,551.99/18,816.80 = 4,766.27/x
  3. Step 3: Cross multiply
    12,551.99x = 18,816.80 × 4,766.27
  4. Step 4: Simplify right side
    12,551.99x = 89,686,008.29
  5. Step 5: Solve for x
    x = 89,686,008.29/12,551.99
  6. Step 6: Final answer
    x = 7,145.16

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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.