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Finding the Fourth Proportional to 39,006.90, 58,519.80 and 11,304.90

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Solution

The fourth proportional to 39,006.90, 58,519.80 and 11,304.90 is: 16,960.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,006.90 : 58,519.80 = 11,304.90 : x
  2. Step 2: Convert to fraction form
    39,006.90/58,519.80 = 11,304.90/x
  3. Step 3: Cross multiply
    39,006.90x = 58,519.80 × 11,304.90
  4. Step 4: Simplify right side
    39,006.90x = 661,560,487.02
  5. Step 5: Solve for x
    x = 661,560,487.02/39,006.90
  6. Step 6: Final answer
    x = 16,960.09

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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.