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Finding the Fourth Proportional to 58,733.50, 81,119.50 and 38,680.02

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Solution

The fourth proportional to 58,733.50, 81,119.50 and 38,680.02 is: 53,422.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,733.50 : 81,119.50 = 38,680.02 : x
  2. Step 2: Convert to fraction form
    58,733.50/81,119.50 = 38,680.02/x
  3. Step 3: Cross multiply
    58,733.50x = 81,119.50 × 38,680.02
  4. Step 4: Simplify right side
    58,733.50x = 3,137,703,882.39
  5. Step 5: Solve for x
    x = 3,137,703,882.39/58,733.50
  6. Step 6: Final answer
    x = 53,422.73

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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.