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Finding the Fourth Proportional to 71,842.40, 107,756.95 and 33,882.96

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Solution

The fourth proportional to 71,842.40, 107,756.95 and 33,882.96 is: 50,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,842.40 : 107,756.95 = 33,882.96 : x
  2. Step 2: Convert to fraction form
    71,842.40/107,756.95 = 33,882.96/x
  3. Step 3: Cross multiply
    71,842.40x = 107,756.95 × 33,882.96
  4. Step 4: Simplify right side
    71,842.40x = 3,651,124,426.57
  5. Step 5: Solve for x
    x = 3,651,124,426.57/71,842.40
  6. Step 6: Final answer
    x = 50,821.30

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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.