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Finding the Fourth Proportional to 18,545.55, 25,593 and 10,369.20

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Solution

The fourth proportional to 18,545.55, 25,593 and 10,369.20 is: 14,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.55 : 25,593 = 10,369.20 : x
  2. Step 2: Convert to fraction form
    18,545.55/25,593 = 10,369.20/x
  3. Step 3: Cross multiply
    18,545.55x = 25,593 × 10,369.20
  4. Step 4: Simplify right side
    18,545.55x = 265,378,935.60
  5. Step 5: Solve for x
    x = 265,378,935.60/18,545.55
  6. Step 6: Final answer
    x = 14,309.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.