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Finding the Fourth Proportional to 36,636.80, 50,556.84 and 20,724.08

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Solution

The fourth proportional to 36,636.80, 50,556.84 and 20,724.08 is: 28,598.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,636.80 : 50,556.84 = 20,724.08 : x
  2. Step 2: Convert to fraction form
    36,636.80/50,556.84 = 20,724.08/x
  3. Step 3: Cross multiply
    36,636.80x = 50,556.84 × 20,724.08
  4. Step 4: Simplify right side
    36,636.80x = 1,047,743,996.71
  5. Step 5: Solve for x
    x = 1,047,743,996.71/36,636.80
  6. Step 6: Final answer
    x = 28,598.13

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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.