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Finding the Fourth Proportional to 39,751.92, 59,630.63 and 13,447.77

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Solution

The fourth proportional to 39,751.92, 59,630.63 and 13,447.77 is: 20,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.92 : 59,630.63 = 13,447.77 : x
  2. Step 2: Convert to fraction form
    39,751.92/59,630.63 = 13,447.77/x
  3. Step 3: Cross multiply
    39,751.92x = 59,630.63 × 13,447.77
  4. Step 4: Simplify right side
    39,751.92x = 801,898,997.20
  5. Step 5: Solve for x
    x = 801,898,997.20/39,751.92
  6. Step 6: Final answer
    x = 20,172.59

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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.