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Finding the Fourth Proportional to 52,396.80, 78,238.82 and 49,436.88

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Solution

The fourth proportional to 52,396.80, 78,238.82 and 49,436.88 is: 73,819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,396.80 : 78,238.82 = 49,436.88 : x
  2. Step 2: Convert to fraction form
    52,396.80/78,238.82 = 49,436.88/x
  3. Step 3: Cross multiply
    52,396.80x = 78,238.82 × 49,436.88
  4. Step 4: Simplify right side
    52,396.80x = 3,867,883,155.68
  5. Step 5: Solve for x
    x = 3,867,883,155.68/52,396.80
  6. Step 6: Final answer
    x = 73,819.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.