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Finding the Fourth Proportional to 56,525.21, 77,988.81 and 36,393.76

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Solution

The fourth proportional to 56,525.21, 77,988.81 and 36,393.76 is: 50,213.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,525.21 : 77,988.81 = 36,393.76 : x
  2. Step 2: Convert to fraction form
    56,525.21/77,988.81 = 36,393.76/x
  3. Step 3: Cross multiply
    56,525.21x = 77,988.81 × 36,393.76
  4. Step 4: Simplify right side
    56,525.21x = 2,838,305,624.39
  5. Step 5: Solve for x
    x = 2,838,305,624.39/56,525.21
  6. Step 6: Final answer
    x = 50,213.09

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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.