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Finding the Fourth Proportional to 53,463.92, 80,133.84 and 20,162.64

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Solution

The fourth proportional to 53,463.92, 80,133.84 and 20,162.64 is: 30,220.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,463.92 : 80,133.84 = 20,162.64 : x
  2. Step 2: Convert to fraction form
    53,463.92/80,133.84 = 20,162.64/x
  3. Step 3: Cross multiply
    53,463.92x = 80,133.84 × 20,162.64
  4. Step 4: Simplify right side
    53,463.92x = 1,615,709,767.74
  5. Step 5: Solve for x
    x = 1,615,709,767.74/53,463.92
  6. Step 6: Final answer
    x = 30,220.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.