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Finding the Fourth Proportional to 77,643.80, 116,466.24 and 33,233.12

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Solution

The fourth proportional to 77,643.80, 116,466.24 and 33,233.12 is: 49,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,643.80 : 116,466.24 = 33,233.12 : x
  2. Step 2: Convert to fraction form
    77,643.80/116,466.24 = 33,233.12/x
  3. Step 3: Cross multiply
    77,643.80x = 116,466.24 × 33,233.12
  4. Step 4: Simplify right side
    77,643.80x = 3,870,536,529.87
  5. Step 5: Solve for x
    x = 3,870,536,529.87/77,643.80
  6. Step 6: Final answer
    x = 49,849.91

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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.