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Finding the Fourth Proportional to 69,373.56, 104,054.96 and 19,451

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Solution

The fourth proportional to 69,373.56, 104,054.96 and 19,451 is: 29,174.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,373.56 : 104,054.96 = 19,451 : x
  2. Step 2: Convert to fraction form
    69,373.56/104,054.96 = 19,451/x
  3. Step 3: Cross multiply
    69,373.56x = 104,054.96 × 19,451
  4. Step 4: Simplify right side
    69,373.56x = 2,023,973,026.96
  5. Step 5: Solve for x
    x = 2,023,973,026.96/69,373.56
  6. Step 6: Final answer
    x = 29,174.99

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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.