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Finding the Fourth Proportional to 45,545.52, 68,321.52 and 14,380.50

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Solution

The fourth proportional to 45,545.52, 68,321.52 and 14,380.50 is: 21,571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,545.52 : 68,321.52 = 14,380.50 : x
  2. Step 2: Convert to fraction form
    45,545.52/68,321.52 = 14,380.50/x
  3. Step 3: Cross multiply
    45,545.52x = 68,321.52 × 14,380.50
  4. Step 4: Simplify right side
    45,545.52x = 982,497,618.36
  5. Step 5: Solve for x
    x = 982,497,618.36/45,545.52
  6. Step 6: Final answer
    x = 21,571.77

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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.