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Finding the Fourth Proportional to 63,345.56, 87,395.65 and 36,487.45

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Solution

The fourth proportional to 63,345.56, 87,395.65 and 36,487.45 is: 50,340.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,345.56 : 87,395.65 = 36,487.45 : x
  2. Step 2: Convert to fraction form
    63,345.56/87,395.65 = 36,487.45/x
  3. Step 3: Cross multiply
    63,345.56x = 87,395.65 × 36,487.45
  4. Step 4: Simplify right side
    63,345.56x = 3,188,844,099.88
  5. Step 5: Solve for x
    x = 3,188,844,099.88/63,345.56
  6. Step 6: Final answer
    x = 50,340.45

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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.