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Finding the Fourth Proportional to 60,100.81, 90,135.84 and 17,969.96

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Solution

The fourth proportional to 60,100.81, 90,135.84 and 17,969.96 is: 26,950.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,100.81 : 90,135.84 = 17,969.96 : x
  2. Step 2: Convert to fraction form
    60,100.81/90,135.84 = 17,969.96/x
  3. Step 3: Cross multiply
    60,100.81x = 90,135.84 × 17,969.96
  4. Step 4: Simplify right side
    60,100.81x = 1,619,737,757.77
  5. Step 5: Solve for x
    x = 1,619,737,757.77/60,100.81
  6. Step 6: Final answer
    x = 26,950.35

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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.