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Finding the Fourth Proportional to 53,392.50, 73,687.08 and 30,732.44

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Solution

The fourth proportional to 53,392.50, 73,687.08 and 30,732.44 is: 42,413.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,392.50 : 73,687.08 = 30,732.44 : x
  2. Step 2: Convert to fraction form
    53,392.50/73,687.08 = 30,732.44/x
  3. Step 3: Cross multiply
    53,392.50x = 73,687.08 × 30,732.44
  4. Step 4: Simplify right side
    53,392.50x = 2,264,583,764.88
  5. Step 5: Solve for x
    x = 2,264,583,764.88/53,392.50
  6. Step 6: Final answer
    x = 42,413.89

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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.