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Finding the Fourth Proportional to 37,489.52, 51,734.84 and 20,722.16

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Solution

The fourth proportional to 37,489.52, 51,734.84 and 20,722.16 is: 28,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,489.52 : 51,734.84 = 20,722.16 : x
  2. Step 2: Convert to fraction form
    37,489.52/51,734.84 = 20,722.16/x
  3. Step 3: Cross multiply
    37,489.52x = 51,734.84 × 20,722.16
  4. Step 4: Simplify right side
    37,489.52x = 1,072,057,632.05
  5. Step 5: Solve for x
    x = 1,072,057,632.05/37,489.52
  6. Step 6: Final answer
    x = 28,596.20

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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.