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Finding the Fourth Proportional to 55,812.70, 76,976.98 and 36,712.09

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Solution

The fourth proportional to 55,812.70, 76,976.98 and 36,712.09 is: 50,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,812.70 : 76,976.98 = 36,712.09 : x
  2. Step 2: Convert to fraction form
    55,812.70/76,976.98 = 36,712.09/x
  3. Step 3: Cross multiply
    55,812.70x = 76,976.98 × 36,712.09
  4. Step 4: Simplify right side
    55,812.70x = 2,825,985,533.47
  5. Step 5: Solve for x
    x = 2,825,985,533.47/55,812.70
  6. Step 6: Final answer
    x = 50,633.38

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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.