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Finding the Fourth Proportional to 73,073.12, 109,609.68 and 17,669.12

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Solution

The fourth proportional to 73,073.12, 109,609.68 and 17,669.12 is: 26,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,073.12 : 109,609.68 = 17,669.12 : x
  2. Step 2: Convert to fraction form
    73,073.12/109,609.68 = 17,669.12/x
  3. Step 3: Cross multiply
    73,073.12x = 109,609.68 × 17,669.12
  4. Step 4: Simplify right side
    73,073.12x = 1,936,706,589.08
  5. Step 5: Solve for x
    x = 1,936,706,589.08/73,073.12
  6. Step 6: Final answer
    x = 26,503.68

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1.5x scale

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.