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Finding the Fourth Proportional to 64,073.70, 96,112.07 and 19,700.85

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Solution

The fourth proportional to 64,073.70, 96,112.07 and 19,700.85 is: 29,551.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,073.70 : 96,112.07 = 19,700.85 : x
  2. Step 2: Convert to fraction form
    64,073.70/96,112.07 = 19,700.85/x
  3. Step 3: Cross multiply
    64,073.70x = 96,112.07 × 19,700.85
  4. Step 4: Simplify right side
    64,073.70x = 1,893,489,810.05
  5. Step 5: Solve for x
    x = 1,893,489,810.05/64,073.70
  6. Step 6: Final answer
    x = 29,551.75

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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.