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Finding the Fourth Proportional to 39,514.70, 59,259.72 and 13,213.29

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Solution

The fourth proportional to 39,514.70, 59,259.72 and 13,213.29 is: 19,815.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,514.70 : 59,259.72 = 13,213.29 : x
  2. Step 2: Convert to fraction form
    39,514.70/59,259.72 = 13,213.29/x
  3. Step 3: Cross multiply
    39,514.70x = 59,259.72 × 13,213.29
  4. Step 4: Simplify right side
    39,514.70x = 783,015,865.68
  5. Step 5: Solve for x
    x = 783,015,865.68/39,514.70
  6. Step 6: Final answer
    x = 19,815.81

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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.