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Finding the Fourth Proportional to 39,609.80, 59,424.42 and 11,530.10

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Solution

The fourth proportional to 39,609.80, 59,424.42 and 11,530.10 is: 17,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,609.80 : 59,424.42 = 11,530.10 : x
  2. Step 2: Convert to fraction form
    39,609.80/59,424.42 = 11,530.10/x
  3. Step 3: Cross multiply
    39,609.80x = 59,424.42 × 11,530.10
  4. Step 4: Simplify right side
    39,609.80x = 685,169,207.92
  5. Step 5: Solve for x
    x = 685,169,207.92/39,609.80
  6. Step 6: Final answer
    x = 17,297.97

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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.