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Finding the Fourth Proportional to 14,609.79, 21,900.83 and 4,742.18

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Solution

The fourth proportional to 14,609.79, 21,900.83 and 4,742.18 is: 7,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,609.79 : 21,900.83 = 4,742.18 : x
  2. Step 2: Convert to fraction form
    14,609.79/21,900.83 = 4,742.18/x
  3. Step 3: Cross multiply
    14,609.79x = 21,900.83 × 4,742.18
  4. Step 4: Simplify right side
    14,609.79x = 103,857,544.79
  5. Step 5: Solve for x
    x = 103,857,544.79/14,609.79
  6. Step 6: Final answer
    x = 7,108.76

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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.