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Finding the Fourth Proportional to 64,139, 96,209.94 and 22,019

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Solution

The fourth proportional to 64,139, 96,209.94 and 22,019 is: 33,028.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,139 : 96,209.94 = 22,019 : x
  2. Step 2: Convert to fraction form
    64,139/96,209.94 = 22,019/x
  3. Step 3: Cross multiply
    64,139x = 96,209.94 × 22,019
  4. Step 4: Simplify right side
    64,139x = 2,118,446,668.86
  5. Step 5: Solve for x
    x = 2,118,446,668.86/64,139
  6. Step 6: Final answer
    x = 33,028.99

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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.