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Finding the Fourth Proportional to 20,363.55, 30,545.33 and 20,363.55

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Solution

The fourth proportional to 20,363.55, 30,545.33 and 20,363.55 is: 30,545.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.55 : 30,545.33 = 20,363.55 : x
  2. Step 2: Convert to fraction form
    20,363.55/30,545.33 = 20,363.55/x
  3. Step 3: Cross multiply
    20,363.55x = 30,545.33 × 20,363.55
  4. Step 4: Simplify right side
    20,363.55x = 622,011,252.90
  5. Step 5: Solve for x
    x = 622,011,252.90/20,363.55
  6. Step 6: Final answer
    x = 30,545.33

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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.