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Finding the Fourth Proportional to 71,390.40, 107,086.44 and 33,954.08

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Solution

The fourth proportional to 71,390.40, 107,086.44 and 33,954.08 is: 50,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,390.40 : 107,086.44 = 33,954.08 : x
  2. Step 2: Convert to fraction form
    71,390.40/107,086.44 = 33,954.08/x
  3. Step 3: Cross multiply
    71,390.40x = 107,086.44 × 33,954.08
  4. Step 4: Simplify right side
    71,390.40x = 3,636,021,550.68
  5. Step 5: Solve for x
    x = 3,636,021,550.68/71,390.40
  6. Step 6: Final answer
    x = 50,931.52

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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.