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Finding the Fourth Proportional to 39,212.80, 58,732.80 and 32,300.80

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Solution

The fourth proportional to 39,212.80, 58,732.80 and 32,300.80 is: 48,380.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,212.80 : 58,732.80 = 32,300.80 : x
  2. Step 2: Convert to fraction form
    39,212.80/58,732.80 = 32,300.80/x
  3. Step 3: Cross multiply
    39,212.80x = 58,732.80 × 32,300.80
  4. Step 4: Simplify right side
    39,212.80x = 1,897,116,426.24
  5. Step 5: Solve for x
    x = 1,897,116,426.24/39,212.80
  6. Step 6: Final answer
    x = 48,380.03

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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.