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Finding the Fourth Proportional to 14,652.99, 21,979.19 and 3,559.74

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Solution

The fourth proportional to 14,652.99, 21,979.19 and 3,559.74 is: 5,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652.99 : 21,979.19 = 3,559.74 : x
  2. Step 2: Convert to fraction form
    14,652.99/21,979.19 = 3,559.74/x
  3. Step 3: Cross multiply
    14,652.99x = 21,979.19 × 3,559.74
  4. Step 4: Simplify right side
    14,652.99x = 78,240,184.01
  5. Step 5: Solve for x
    x = 78,240,184.01/14,652.99
  6. Step 6: Final answer
    x = 5,339.54

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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.