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Finding the Fourth Proportional to 14,409.01, 21,597.87 and 7,379.38

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Solution

The fourth proportional to 14,409.01, 21,597.87 and 7,379.38 is: 11,061.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.01 : 21,597.87 = 7,379.38 : x
  2. Step 2: Convert to fraction form
    14,409.01/21,597.87 = 7,379.38/x
  3. Step 3: Cross multiply
    14,409.01x = 21,597.87 × 7,379.38
  4. Step 4: Simplify right side
    14,409.01x = 159,378,889.92
  5. Step 5: Solve for x
    x = 159,378,889.92/14,409.01
  6. Step 6: Final answer
    x = 11,061.06

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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.