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Finding the Fourth Proportional to 73,235.80, 109,832.10 and 28,847.80

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Solution

The fourth proportional to 73,235.80, 109,832.10 and 28,847.80 is: 43,263.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,235.80 : 109,832.10 = 28,847.80 : x
  2. Step 2: Convert to fraction form
    73,235.80/109,832.10 = 28,847.80/x
  3. Step 3: Cross multiply
    73,235.80x = 109,832.10 × 28,847.80
  4. Step 4: Simplify right side
    73,235.80x = 3,168,414,454.38
  5. Step 5: Solve for x
    x = 3,168,414,454.38/73,235.80
  6. Step 6: Final answer
    x = 43,263.19

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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.