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Finding the Fourth Proportional to 42,516.99, 63,644.22 and 27,693.99

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Solution

The fourth proportional to 42,516.99, 63,644.22 and 27,693.99 is: 41,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,516.99 : 63,644.22 = 27,693.99 : x
  2. Step 2: Convert to fraction form
    42,516.99/63,644.22 = 27,693.99/x
  3. Step 3: Cross multiply
    42,516.99x = 63,644.22 × 27,693.99
  4. Step 4: Simplify right side
    42,516.99x = 1,762,562,392.24
  5. Step 5: Solve for x
    x = 1,762,562,392.24/42,516.99
  6. Step 6: Final answer
    x = 41,455.48

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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.