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Finding the Fourth Proportional to 53,809.92, 80,674.56 and 36,230.40

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Solution

The fourth proportional to 53,809.92, 80,674.56 and 36,230.40 is: 54,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,809.92 : 80,674.56 = 36,230.40 : x
  2. Step 2: Convert to fraction form
    53,809.92/80,674.56 = 36,230.40/x
  3. Step 3: Cross multiply
    53,809.92x = 80,674.56 × 36,230.40
  4. Step 4: Simplify right side
    53,809.92x = 2,922,871,578.62
  5. Step 5: Solve for x
    x = 2,922,871,578.62/53,809.92
  6. Step 6: Final answer
    x = 54,318.45

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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.