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Finding the Fourth Proportional to 83,628.87, 125,447.46 and 33,702.30

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Solution

The fourth proportional to 83,628.87, 125,447.46 and 33,702.30 is: 50,555.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,628.87 : 125,447.46 = 33,702.30 : x
  2. Step 2: Convert to fraction form
    83,628.87/125,447.46 = 33,702.30/x
  3. Step 3: Cross multiply
    83,628.87x = 125,447.46 × 33,702.30
  4. Step 4: Simplify right side
    83,628.87x = 4,227,867,931.16
  5. Step 5: Solve for x
    x = 4,227,867,931.16/83,628.87
  6. Step 6: Final answer
    x = 50,555.12

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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.