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Finding the Fourth Proportional to 64,012.69, 96,030.41 and 21,897.43

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Solution

The fourth proportional to 64,012.69, 96,030.41 and 21,897.43 is: 32,850.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,012.69 : 96,030.41 = 21,897.43 : x
  2. Step 2: Convert to fraction form
    64,012.69/96,030.41 = 21,897.43/x
  3. Step 3: Cross multiply
    64,012.69x = 96,030.41 × 21,897.43
  4. Step 4: Simplify right side
    64,012.69x = 2,102,819,180.85
  5. Step 5: Solve for x
    x = 2,102,819,180.85/64,012.69
  6. Step 6: Final answer
    x = 32,850.04

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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.