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Finding the Fourth Proportional to 39,250.80, 58,919.40 and 36,712.80

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Solution

The fourth proportional to 39,250.80, 58,919.40 and 36,712.80 is: 55,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,250.80 : 58,919.40 = 36,712.80 : x
  2. Step 2: Convert to fraction form
    39,250.80/58,919.40 = 36,712.80/x
  3. Step 3: Cross multiply
    39,250.80x = 58,919.40 × 36,712.80
  4. Step 4: Simplify right side
    39,250.80x = 2,163,096,148.32
  5. Step 5: Solve for x
    x = 2,163,096,148.32/39,250.80
  6. Step 6: Final answer
    x = 55,109.61

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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.