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Finding the Fourth Proportional to 63,170.50, 94,724.02 and 21,035.70

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Solution

The fourth proportional to 63,170.50, 94,724.02 and 21,035.70 is: 31,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,170.50 : 94,724.02 = 21,035.70 : x
  2. Step 2: Convert to fraction form
    63,170.50/94,724.02 = 21,035.70/x
  3. Step 3: Cross multiply
    63,170.50x = 94,724.02 × 21,035.70
  4. Step 4: Simplify right side
    63,170.50x = 1,992,586,067.51
  5. Step 5: Solve for x
    x = 1,992,586,067.51/63,170.50
  6. Step 6: Final answer
    x = 31,542.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.