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Finding the Fourth Proportional to 63,625.50, 87,803.19 and 37,129.50

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Solution

The fourth proportional to 63,625.50, 87,803.19 and 37,129.50 is: 51,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,625.50 : 87,803.19 = 37,129.50 : x
  2. Step 2: Convert to fraction form
    63,625.50/87,803.19 = 37,129.50/x
  3. Step 3: Cross multiply
    63,625.50x = 87,803.19 × 37,129.50
  4. Step 4: Simplify right side
    63,625.50x = 3,260,088,543.11
  5. Step 5: Solve for x
    x = 3,260,088,543.11/63,625.50
  6. Step 6: Final answer
    x = 51,238.71

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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.