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Finding the Fourth Proportional to 67,805.74, 101,699.94 and 17,889.58

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Solution

The fourth proportional to 67,805.74, 101,699.94 and 17,889.58 is: 26,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,805.74 : 101,699.94 = 17,889.58 : x
  2. Step 2: Convert to fraction form
    67,805.74/101,699.94 = 17,889.58/x
  3. Step 3: Cross multiply
    67,805.74x = 101,699.94 × 17,889.58
  4. Step 4: Simplify right side
    67,805.74x = 1,819,369,212.63
  5. Step 5: Solve for x
    x = 1,819,369,212.63/67,805.74
  6. Step 6: Final answer
    x = 26,832.08

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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.