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Finding the Fourth Proportional to 36,813.65, 50,803.08 and 20,898.38

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Solution

The fourth proportional to 36,813.65, 50,803.08 and 20,898.38 is: 28,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,813.65 : 50,803.08 = 20,898.38 : x
  2. Step 2: Convert to fraction form
    36,813.65/50,803.08 = 20,898.38/x
  3. Step 3: Cross multiply
    36,813.65x = 50,803.08 × 20,898.38
  4. Step 4: Simplify right side
    36,813.65x = 1,061,702,071.01
  5. Step 5: Solve for x
    x = 1,061,702,071.01/36,813.65
  6. Step 6: Final answer
    x = 28,839.90

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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.