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Finding the Fourth Proportional to 37,659.84, 51,976.80 and 20,898.24

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Solution

The fourth proportional to 37,659.84, 51,976.80 and 20,898.24 is: 28,843.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,659.84 : 51,976.80 = 20,898.24 : x
  2. Step 2: Convert to fraction form
    37,659.84/51,976.80 = 20,898.24/x
  3. Step 3: Cross multiply
    37,659.84x = 51,976.80 × 20,898.24
  4. Step 4: Simplify right side
    37,659.84x = 1,086,223,640.83
  5. Step 5: Solve for x
    x = 1,086,223,640.83/37,659.84
  6. Step 6: Final answer
    x = 28,843.02

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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.