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Finding the Fourth Proportional to 28,545.53, 42,819.50 and 8,824.46

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Solution

The fourth proportional to 28,545.53, 42,819.50 and 8,824.46 is: 13,237.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.53 : 42,819.50 = 8,824.46 : x
  2. Step 2: Convert to fraction form
    28,545.53/42,819.50 = 8,824.46/x
  3. Step 3: Cross multiply
    28,545.53x = 42,819.50 × 8,824.46
  4. Step 4: Simplify right side
    28,545.53x = 377,858,772.93
  5. Step 5: Solve for x
    x = 377,858,772.93/28,545.53
  6. Step 6: Final answer
    x = 13,237.06

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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.