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Finding the Fourth Proportional to 52,065.87, 78,099.07 and 12,622.99

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Solution

The fourth proportional to 52,065.87, 78,099.07 and 12,622.99 is: 18,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,065.87 : 78,099.07 = 12,622.99 : x
  2. Step 2: Convert to fraction form
    52,065.87/78,099.07 = 12,622.99/x
  3. Step 3: Cross multiply
    52,065.87x = 78,099.07 × 12,622.99
  4. Step 4: Simplify right side
    52,065.87x = 985,843,552.81
  5. Step 5: Solve for x
    x = 985,843,552.81/52,065.87
  6. Step 6: Final answer
    x = 18,934.54

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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.