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Finding the Fourth Proportional to 54,485.32, 81,572.04 and 36,923.92

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Solution

The fourth proportional to 54,485.32, 81,572.04 and 36,923.92 is: 55,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,485.32 : 81,572.04 = 36,923.92 : x
  2. Step 2: Convert to fraction form
    54,485.32/81,572.04 = 36,923.92/x
  3. Step 3: Cross multiply
    54,485.32x = 81,572.04 × 36,923.92
  4. Step 4: Simplify right side
    54,485.32x = 3,011,959,479.20
  5. Step 5: Solve for x
    x = 3,011,959,479.20/54,485.32
  6. Step 6: Final answer
    x = 55,280.20

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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.