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Finding the Fourth Proportional to 72,758.85, 109,142.88 and 22,840.92

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Solution

The fourth proportional to 72,758.85, 109,142.88 and 22,840.92 is: 34,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,758.85 : 109,142.88 = 22,840.92 : x
  2. Step 2: Convert to fraction form
    72,758.85/109,142.88 = 22,840.92/x
  3. Step 3: Cross multiply
    72,758.85x = 109,142.88 × 22,840.92
  4. Step 4: Simplify right side
    72,758.85x = 2,492,923,790.65
  5. Step 5: Solve for x
    x = 2,492,923,790.65/72,758.85
  6. Step 6: Final answer
    x = 34,262.83

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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.