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Finding the Fourth Proportional to 66,472.65, 99,707.36 and 27,019.98

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Solution

The fourth proportional to 66,472.65, 99,707.36 and 27,019.98 is: 40,529.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.65 : 99,707.36 = 27,019.98 : x
  2. Step 2: Convert to fraction form
    66,472.65/99,707.36 = 27,019.98/x
  3. Step 3: Cross multiply
    66,472.65x = 99,707.36 × 27,019.98
  4. Step 4: Simplify right side
    66,472.65x = 2,694,090,737.95
  5. Step 5: Solve for x
    x = 2,694,090,737.95/66,472.65
  6. Step 6: Final answer
    x = 40,529.31

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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.