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Finding the Fourth Proportional to 55,759.46, 77,011.91 and 36,724.30

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Solution

The fourth proportional to 55,759.46, 77,011.91 and 36,724.30 is: 50,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,759.46 : 77,011.91 = 36,724.30 : x
  2. Step 2: Convert to fraction form
    55,759.46/77,011.91 = 36,724.30/x
  3. Step 3: Cross multiply
    55,759.46x = 77,011.91 × 36,724.30
  4. Step 4: Simplify right side
    55,759.46x = 2,828,208,887.74
  5. Step 5: Solve for x
    x = 2,828,208,887.74/55,759.46
  6. Step 6: Final answer
    x = 50,721.60

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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.