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Finding the Fourth Proportional to 53,585.98, 73,958.88 and 30,939.64

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Solution

The fourth proportional to 53,585.98, 73,958.88 and 30,939.64 is: 42,702.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,585.98 : 73,958.88 = 30,939.64 : x
  2. Step 2: Convert to fraction form
    53,585.98/73,958.88 = 30,939.64/x
  3. Step 3: Cross multiply
    53,585.98x = 73,958.88 × 30,939.64
  4. Step 4: Simplify right side
    53,585.98x = 2,288,261,122.00
  5. Step 5: Solve for x
    x = 2,288,261,122.00/53,585.98
  6. Step 6: Final answer
    x = 42,702.61

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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.