Home / 36,554.54-50,439.57-20,638.65

Finding the Fourth Proportional to 36,554.54, 50,439.57 and 20,638.65

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Solution

The fourth proportional to 36,554.54, 50,439.57 and 20,638.65 is: 28,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,554.54 : 50,439.57 = 20,638.65 : x
  2. Step 2: Convert to fraction form
    36,554.54/50,439.57 = 20,638.65/x
  3. Step 3: Cross multiply
    36,554.54x = 50,439.57 × 20,638.65
  4. Step 4: Simplify right side
    36,554.54x = 1,041,004,631.38
  5. Step 5: Solve for x
    x = 1,041,004,631.38/36,554.54
  6. Step 6: Final answer
    x = 28,478.13

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Half scale
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Double scale
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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.