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Finding the Fourth Proportional to 71,281.67, 106,920.12 and 33,868.58

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Solution

The fourth proportional to 71,281.67, 106,920.12 and 33,868.58 is: 50,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,281.67 : 106,920.12 = 33,868.58 : x
  2. Step 2: Convert to fraction form
    71,281.67/106,920.12 = 33,868.58/x
  3. Step 3: Cross multiply
    71,281.67x = 106,920.12 × 33,868.58
  4. Step 4: Simplify right side
    71,281.67x = 3,621,232,637.83
  5. Step 5: Solve for x
    x = 3,621,232,637.83/71,281.67
  6. Step 6: Final answer
    x = 50,801.74

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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.