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Finding the Fourth Proportional to 14,687.68, 22,035.84 and 5,918.08

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Solution

The fourth proportional to 14,687.68, 22,035.84 and 5,918.08 is: 8,878.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.68 : 22,035.84 = 5,918.08 : x
  2. Step 2: Convert to fraction form
    14,687.68/22,035.84 = 5,918.08/x
  3. Step 3: Cross multiply
    14,687.68x = 22,035.84 × 5,918.08
  4. Step 4: Simplify right side
    14,687.68x = 130,409,863.99
  5. Step 5: Solve for x
    x = 130,409,863.99/14,687.68
  6. Step 6: Final answer
    x = 8,878.86

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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.