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Finding the Fourth Proportional to 53,472.64, 73,797.74 and 30,812.48

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Solution

The fourth proportional to 53,472.64, 73,797.74 and 30,812.48 is: 42,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,472.64 : 73,797.74 = 30,812.48 : x
  2. Step 2: Convert to fraction form
    53,472.64/73,797.74 = 30,812.48/x
  3. Step 3: Cross multiply
    53,472.64x = 73,797.74 × 30,812.48
  4. Step 4: Simplify right side
    53,472.64x = 2,273,891,387.80
  5. Step 5: Solve for x
    x = 2,273,891,387.80/53,472.64
  6. Step 6: Final answer
    x = 42,524.39

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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.