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Finding the Fourth Proportional to 54,302.87, 81,467.88 and 38,323.61

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Solution

The fourth proportional to 54,302.87, 81,467.88 and 38,323.61 is: 57,494.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,302.87 : 81,467.88 = 38,323.61 : x
  2. Step 2: Convert to fraction form
    54,302.87/81,467.88 = 38,323.61/x
  3. Step 3: Cross multiply
    54,302.87x = 81,467.88 × 38,323.61
  4. Step 4: Simplify right side
    54,302.87x = 3,122,142,661.69
  5. Step 5: Solve for x
    x = 3,122,142,661.69/54,302.87
  6. Step 6: Final answer
    x = 57,494.98

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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.